The probability that exactly 8 of the 19 people in the random sample are employed is 27.93%.
We need to calculate the probability that exactly 8 of the 19 people in the random sample are employed. The probability of a single person being employed is 4%, or 0.04.
To calculate the probability of 8 people being employed out of the 19, we can use the binomial distribution formula:
P(X=8) = nCx * (p^x) * (1-p)^(n-x) Where n = 19, x = 8, p = 0.04, and 1-p = 0.96
So, P(X=8) = 19C8 * (0.04^8) * (0.96^11) = 0.2793 or 27.93%.
Therefore, the probability that exactly 8 of the 19 people in the random sample are employed is 27.93%.
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assume that 90 million households in the u.s. turn on their televisions at 8:00 p.m. on a sunday night, and the total number of u.s. tb households is 119.9 million. calculate the households using television (hut) figure.
The households using television (HUT) figure is 75.06%.
The households using television (HUT) figure is a measure of the percentage of households that have turned on their televisions at a particular time. It is calculated by dividing the number of households watching TV by the total number of households and multiplying by 100%.
In this case, we are given that 90 million households in the US turned on their televisions at 8:00 p.m. on a Sunday night. The total number of US households is 119.9 million. Using this information, we can calculate the HUT figure as follows
Households using television (HUT) = (Number of households watching TV / Total number of households) x 100%
HUT = (90 million / 119.9 million) x 100%
HUT = 75.06%
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A coin is tossed 300 times, and gets heads for 200 times, tails for 80 times.What is the probability of getting a tales
Answer:
Step-by-step explanation:
Head: 220 times, tail 80 times. Find the probability of occurrence of each of events. 2.
Austin wants to pour 50.94 grams of salt into a container. So far he has poured 39.2 grams. How much more salt should Austin pour
Using arithmetic operation it is obtained that Austin should pour 11.74 more grams of salt to reach his desired amount of 50.94 grams.
What is arithmetic operation?
A subject of mathematics known as arithmetic operations deals with the study and use of numbers in all other branches of mathematics. Basic operations including addition, subtraction, multiplication, and division are included.
To determine how much more salt Austin should pour, we need to subtract the amount of salt he has poured from the total amount he wants to pour -
Use the arithmetic operation of subtraction.
Total amount of salt = 50.94 grams
Amount of salt poured so far = 39.2 grams
Therefore, the amount of salt that Austin still needs to pour is obtained by the expression -
50.94 grams - 39.2 grams = 11.74 grams
Therefore, Austin should pour 11.74 more grams of salt.
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The school cafeteria has 150 cups of strawberries and 450 cups of blackberries. How many total cups of berries does the school cafeteria have?
Total number of cups of berries does the school cafeteria have is 600
Addition is a basic mathematical operation that involves combining two or more numbers or quantities to find a total or sum. In other words, it is the process of finding the total amount when two or more numbers are added together.
To find the total number of cups of berries in the school cafeteria, you can add the number of cups of strawberries and blackberries.
The school cafeteria has 150 cups of strawberries and 450 cups of blackberries, so
Total cups of berries = cups of strawberries + cups of blackberries
Total cups of berries = 150 + 450
Total cups of berries = 600
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Assume that Canada imports more goods and services than it exports. Which of the following is true of the Canadian balance of payments accounts??
The correct answer is C. Could you please explain in detail why the trade balance must be negative, and why A and E is wrong. Thx!!!25. Assume that Canada imports more goods and services than it exports. Which of the following is true of the Canadian balance of payments accounts? (A) The current account balance must be negative. (B) The current account balance must be positive (C) The trade balance must be negative. (D) The financial account (formerly called capital account) balance must be negative (E) The financial account (formerly called capital account) balance must be positive
The trade balance must be negative.
If Canada imports more goods and services than it exports, the trade balance must be negative.
Here's a step-by-step explanation of why this is true and why options A and E are wrong:
1. The trade balance is calculated as the value of exports minus the value of imports. If imports are greater than exports, the trade balance will be negative (C). This m that Canada is seen spending more on goods and services from other countries than it is receiving from the sale of its own goods and services to other countries.
2. The current account balance includes the trade balance, but also considers other transactions such as income from investments and transfers like foreign aid. While it is possible that a negative trade balance could be offset by other positive inflows, we do not have enough information to determine whether the current account balance must be negative (A) or positive (B). Therefore, we cannot definitively say that A or B is true.
3. The financial account (formerly called capital account) balance records the net change in ownership of financial assets, such as stocks and bonds, between a country and the rest of the world. A negative financial account balance means that a country's residents are purchasing more foreign assets than foreign residents are purchasing of that country's assets. A positive financial account balance means the opposite. Since we only have information about the trade balance and not the financial transactions, we cannot determine whether the financial account balance must be negative (D) or positive (E).
Based on the information given, we can only conclude that the trade balance must be negative (C) if Canada imports more goods and services than it exports.
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Casper has a balloon with a diameter of
6 inches that is seven times the volume of
his brother's balloon. What is the
volume of Casper brother's
approximate
balloon?
Answer:
The volume of a sphere is given by the formula:
V = (4/3)πr^3
where r is the radius of the sphere.
Since the diameter of Casper's balloon is 6 inches, the radius is 3 inches. Therefore, the volume of Casper's balloon is:
V1 = (4/3)π(3 inches)^3 = 113.1 cubic inches (approx.)
We know that Casper's balloon is seven times the volume of his brother's balloon. Let's call the volume of his brother's balloon V2. We can set up an equation:
V1 = 7V2
Substituting the value of V1, we get:
113.1 cubic inches = 7V2
Dividing both sides by 7, we get:
V2 = 16.2 cubic inches (approx.)
Therefore, the approximate volume of Casper's brother's balloon is 16.2 cubic inches.
Find the volume of the solid by subtracting two volumes.
The solid in the first octant under the plane z = x + y, above the surface z = xy, and enclosed by the surfaces x = 0, y = 0, and x2 + y2 = 4
The volume of the solid is 1.5 cubic units. From the solid in the first octant under the plane z = x + y, above the surface z = xy, and enclosed by the surfaces x = 0, y = 0, and x2 + y2 = 4
To find the volume of the solid by subtracting two volumes, we need to find the limits of integration for x, y, and z.
From the given information, we know that the solid is in the first octant and is enclosed by the surfaces x = 0, y = 0, and x2 + y2 = 4. Thus, the limits of integration for x and y are 0 to 2 since the radius of the circle x2 + y2 = 4 is 2.
Next, we need to find the limits of integration for z. To do this, we need to set the two given equations equal to each other:
xy = x + y
xy - x - y = 0
Using partial fraction decomposition:
xy - x - y = (x - 1)(y - 1) - 1
So, we have:
(x - 1)(y - 1) = z - 1
Thus, the limits of integration for z are 1 to 3.
Now, we can set up the integral to find the volume:
V = ∫∫∫ dV
V = ∫0^2 ∫0^(2 - x) ∫1^(x + y) dz dy dx
Evaluating this integral, we get the volume of the solid as 1.5 cubic units.
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AAAAAA HELP THIS IS DUE TONIGHT ADN ITS A TEST GRADE
Answer: $35.05
Step-by-step explanation:
10% of 350.52 ≈ 35.05
Which point is not included in the solution set for the inequality? (–2, 1) (1, 3) (4, 3) (5, -1?
From the given graph, the points (1, 3) lies on dotted lines, thus they are not taken in the solution set for the inequality.
Explain about the solution set of inequality?When expressions are compared using the operators "less than" (<), "less than or equal to" (<=), "greater than" (>), or "greater than or equal to" (>=), an inequality is created.
A number is a solution to an inequality in x if it can be used to replace x with a statement that is true. The collection of all solutions makes up the solution set for an inequality. Usually, there are infinitely many solutions to an inequality, and interval notation makes it simple to describe the solution set.From the graph, the shaded region shows the solution for the inequality.
As we can see that the curve is drawn with the broken lines,the points lying on the curve will no be taken as in solution set of inequality.
Thus, the points (1, 3) lies on dotted lines, thus they are not taken in the solution set for the inequality.
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Complete question:
Which point is not included in the solution set for the inequality? (–2, 1) (1, 3) (4, 3) (5, -1)?
The graph for the question is attached.
v=[2;0;-1]; >> w=[1;3;3]; >> x=[6;1;-3]; >> y=[1;0;2]; >> z=[2;-15;-1];Exercise 5.1 Enter the following vectors into MATLAEB 6 a. List all maximal orthogonal subsets of the above set. That is, group the vectors v, w, x, y, and z in as many ways as possible so that all the vectors in your group are orthogonal to each other and none of the vectors outside the group are orthogonal to all the vectors in the group. For example, the set fw, x) contains two vectors that are orthogonal to each other and none of the other vectors are orthogonal to both of these at the same time. But this is only one example, there are more What is the maximum number of nonzero orthogonal vectors that you could possibly find in R3? What about R? Explain b. Take the largest orthogonal subset and normalize all the vectors in that set as follows: >> V-v/norm(v) This code replaces v with itself divided by its size-so we get a vector pointing in the same direction but with length 1. The above code normalizes v, so you'll have to normalize the other vectors in your orthogonal subset as well, replacing v with the appropriate letter. Store the resulting vectors in MATLAB as columns of a matrix W. Enter them in alphabetical order from left to right
As a question-answering bot, I cannot provide the solution of this question as it requires the use of MATLAB software which cannot be done in this platform. However, I can provide a general overview and steps that can be followed to solve the problem. List all maximal orthogonal subsets of the above set. That is, group the vectors v, w, x, y, and z in as many ways as possible so that all the vectors in your group are orthogonal to each other and none of the vectors outside the group are orthogonal to all the vectors in the group. The maximal orthogonal subsets of the above set are: {v, y}, {w, x}, {z}b. Take the largest orthogonal subset and normalize all the vectors in that set as follows: >> V-v/norm(v) This code replaces v with itself divided by its size-so we get a vector pointing in the same direction but with length 1. The above code normalizes v, so you'll have to normalize the other vectors in your orthogonal subset as well, replacing v with the appropriate letter. Store the resulting vectors in MATLAB as columns of a matrix W. Enter them in alphabetical order from left to right.The largest orthogonal subset is {w, x}. The normalized vectors are w/norm(w) and x/norm(x). Store the resulting vectors in MATLAB as columns of a matrix W and enter them in alphabetical order from left to right. The resulting matrix would be: W = [1/√19 6/√19; 3/√19 1/√19; 0 -3/√19]Note: This solution is based on the assumption that the vectors are given in column form.
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a social media company claims that over 1 million people log onto their app daily. to test this claim, you record the number of people who log onto the app for 65 days. the mean number of people to log in and use the social media app was discovered to be 998,946 users a day, with a standard deviation of 23,876.23. test the hypothesis using a 1% level of significance.
Answer: The correct answer is "Fail to reject the null hypothesis. There is not enough evidence to oppose the company's claim."
Step-by-step explanation:
I took the test
I need to figure out the height of the house using these measurements.
She's standing 11 feet from the house, her eyes are 5 feet from the ground, and the angle of elevation for the house is 125 degrees. Please help quickly. I also need to show my work for this problem.
The height of the house with an angel of elevation 25° from the line of sight of the observer is equal to 10 ft to the nearest foot.
What is an angle of elevationThe angle of elevation is the angle between the horizontal line and the line of sight which is above the horizontal line.
The height of the house is the sum of length from her eyes to the ground and the perpendicular length from her eyes to the top of the house.
we shall represent the perpendicular length from her eyes to the top of the house with x so that;
tan 25° = x/11 {opposite/adjacent}
x = 11 × tan 25°
x = 5.1294
height of the house = 5 ft + 5.1294 ft
height of the house = 10.1294 ft
Therefore, the height of the house with an angel of elevation 25° from the line of sight of the observer is equal to 10 ft to the nearest foot.
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Possible question:
Figure out the height of the house using these measurements. She's standing 11 feet from the house, her eyes are 5 feet from the ground, and the angle of elevation to the top of house is 25 degrees.
Spaceship Earth is a major tourist at Epcot. It is a sphere whose volume is
approximately 65, 417 m³. What is the approximate circumference of Spaceship
Earth? Use π = 3. 14. Round to the nearest whole number. Do not label.
The approximate circumference of Spaceship Earth is approximately 138.02 meters.
What is circumference of a circle?A circle's perimeter is known as its circumference. It is the circumference of the circle as a whole. A circle's circumference is calculated by multiplying its diameter by the constant. This measurement of a circle's diameter is necessary for someone crossing a circular park or for enclosing a circle. The units for the circumference, which is a linear variable, are the same as those for length.
The volume of the sphere is given as:
V = (4/3)πr³
Substituting the values:
[tex]r = (3(65,417)/4(3.14))^{(1/3)} = 21.96 meters[/tex]
The circumference of the circle is:
C = 2πr
Substituting the value of r:
C = 2(3.14)(21.96) = 138.02 meters
Hence, the approximate circumference of Spaceship Earth is approximately 138.02 meters.
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Justin weighs 15 pounds less then greg weighs, haft of greg weight is 75 pounds less then justins weight how much does each of them weigh
By setting up equations and solving for the variables, we found that Greg weighs 180 pounds and Justin weighs 165 pounds.
Let's start by assigning variables to represent Justin and Greg's weights. Let J represent Justin's weight and G represent Greg's weight.
We are given that Justin weighs 15 pounds less than Greg, which can be written as:
J = G - 15
We are also given that half of Greg's weight is 75 pounds less than Justin's weight. We can write this as an equation:
(1/2)G = J - 75
We can simplify this equation by substituting the first equation (J = G - 15) for J:
(1/2)G = (G - 15) - 75
Now we can solve for G, which represents Greg's weight:
(1/2)G = G - 90
Subtracting G from both sides gives:
(1/2)G - G = -90
Multiplying both sides by 2 gives:
G - 2G = -180
Simplifying gives:
-G = -180
Dividing both sides by -1 gives:
G = 180
So we have found that Greg weighs 180 pounds. We can use the first equation (J = G - 15) to find Justin's weight:
J = 180 - 15
J = 165
Therefore, Justin weighs 165 pounds.
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How many tons of cardboard does it take to make boxes for 250 million tubes of toothpaste if the weight of one box is 0.51 oz.?
Answer:
3,984.375 tons
Step-by-step explanation:
First, let's convert the weight of one box from ounces to tons:
0.51 oz = 0.51/16 = 0.031875 lbs
1 lb = 0.0005 tons (since 1 ton = 2000 lbs)
0.031875 lbs = 0.031875 x 0.0005 = 0.0000159375 tons
Next, let's calculate the total weight of cardboard needed for 250 million boxes:
Total weight of cardboard = weight of one box x number of boxes
Total weight of cardboard = 0.0000159375 tons x 250,000,000
Total weight of cardboard = 3,984.375 tons
Jared's class took a survey to see how many students owned a trampoline. Of the 23 students in the class, 21 students said they owned a trampoline. If you chose a student at random from Jared's class, what is the probability that the student does not own a trampoline?
Answer:
There are different ways to approach this problem, but one possible method is:
Define the event A as "the student owns a trampoline".
Find the probability of A: P(A) = 21/23, because 21 out of 23 students said they owned a trampoline.
Find the probability of the complement of A, which is "the student does not own a trampoline". We can denote this event as A', and it is equivalent to "the student is one of the 2 students who did not say they owned a trampoline". Therefore, P(A') = 2/23.
Check that P(A) + P(A') = 1, because the student either owns a trampoline or does not.
Answer the question: the probability that the student does not own a trampoline is P(A') = 2/23, or approximately 0.087 or 8.7% (rounded to one decimal place).
Therefore, the answer is: the probability that the student does not own a trampoline is 2/23, or approximately 0.087 or 8.7%.
in a survey, 130 out of 250 students said that they played video games. what percent of the students played video games? answer
The percentage of students who played video games in the survey is 52%.
To find this percentage, we first need to calculate the fraction of students who played video games. This can be done by dividing the number of students who played video games by the total number of students surveyed:
Fraction of students who played video games = 130/250
Simplifying this fraction by dividing both the numerator and denominator by 10, we get:
Fraction of students who played video games = 13/25
To convert this fraction to a percentage, we can multiply it by 100:
Percentage of students who played video games = (13/25) * 100
Simplifying this expression, we get:
Percentage of students who played video games = 52%
Therefore, 52% of the students in the survey played video games.
Hence, to find the percentage of students who played video games in a survey, we divide the number of students who played video games by the total number of students surveyed and then multiply the resulting fraction by 100 to get the percentage.
In this case, 130 out of 250 students played video games, so the percentage is 52%.
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Two ships are near a buoy in the open ocean. One ship is 20 km due north of the buoy, and the other ship is 13.5 km due east of the buoy.
Enter a number in the box to correctly complete the statement. Round the answer to the nearest tenth.
In this instance, the buoy forms the right corner of a triangle made up of the two ships and the buoy. To the closest tenth, the distance between the two ships is roughly [tex]24.1[/tex] km.
What is the distance between two object?To find the distance between the two ships, we can use the Pythagorean theorem, which states that in a right triangle, the sum of the squares of the lengths of the legs
(the sides that form the right angle) is equal to the square of the length of the hypotenuse (the side opposite the right angle).
In this case, the two ships and the buoy form a right triangle, with the buoy at the right angle.
Let d be the distance between the two ships, x be the distance of the northern ship to the buoy and y be the distance of the eastern ship to the buoy. Then we have:
[tex]d^2 = x^2 + y^2[/tex]
Substituting the given values, we get:
[tex]d^2 = (20 km)^2 + (13.5 km)^2[/tex]
[tex]d^2 = 400 km^2 + 182.25 km^2[/tex]
[tex]d^2 = 582.25 km^2[/tex]
[tex]d ≈ 24.1 km[/tex]
Therefore, the distance between the two ships is approximately 24.1 km, rounded to the nearest tenth.
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Need the answer to this ASAP!!
The distance between points F and G is 12.806 units. The coordinates of F are (6,6) and the coordinates of G are (16,14).
What is distance?Distance in a graph is a measure of the difference between two points. It is calculated as the shortest path between two points in a graph, usually measured in terms of the number of edges that must be traversed to get from one point to the other. Distance can also be measured in terms of the number of vertices that must be crossed to get from one point to the other.
The distance between two points F and G in the graph can be calculated using the distance formula.
The distance formula states that the distance between two points (x1, y1) and (x2, y2) =√ (x2-x1)² + (y2-y1)²
Therefore, to calculate the distance between points F and G, we will use the distance formula.
The coordinates of F are (6,6) and the coordinates of G are (16,14).
Substituting these values into the distance formula, we get the following:
Distance = √(16 - 6)² + (14 - 6)²
Distance = √100 + 64
Distance = √164
Distance = 12.806
The distance between points F and G is 12.806 units.
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the numerator of a certain fraction is nine less than the denominator. if the fraction reduces to (1/7), what is the numerator of the fraction?
The numerator of the fraction is 2.
The fraction can be written as 2/7, and since the numerator is nine less than the denominator, when the fraction reduces to (1/7) it means that the numerator must be 2.
To solve this problem, first determine what is given in the question: a fraction with a numerator that is nine less than the denominator, and that reduces to (1/7).
Using this information, the goal is to determine the numerator of the fraction.
To do this, simply subtract nine from the denominator and the result will be the numerator. In this case, the denominator is 7, so subtracting 9 from 7 gives us 2, which is the numerator of the fraction.
Therefore, the numerator of the fraction is 2.
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the gregorian year averages 365.242500 days in length. the tropical year is 365.242199 days. how many years must pass until the gregorian and tropical years are out of step by exactly one day? group of answer choices
Therefore, it would take about 3322 years for the Gregorian and tropical years to be out of step by exactly one day.
What is length?Length is a physical quantity that describes how long or how far apart two points or objects are from each other in space. It is typically measured in units such as meters, feet, or inches, and is one of the basic dimensions used to describe the size and position of objects in the physical world.
given by the question.
The difference between the length of the Gregorian year and the tropical year is:
365.242500 - 365.242199 = 0.000301
This means that every year, the Gregorian calendar gains 0.000301 days on the tropical year. To be out of step by exactly one day, the Gregorian calendar needs to gain one full day on the tropical year, which would take:
1 / 0.000301 = 3322.26 years.
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Name an angle supplementary to ∠HZJ. Be sure to use the three-letter naming convention.
It will be angle JZF.
Because if you add both of them, sum will be equal to 180°.
Max set a goal to decrease his original 60-minute swim time by 30% during the triathlon.
the amount of change: 18 minutes <----- correct answer
Triathlon swim time: 42 minutes <--------- Correct Answer
Everything is correct here, Don't forget to correctly read the answers, otherwise, you'll accidentally get it wrong. Thank me later :)
Max's swim time during the triathlon would be 42 minutes.
What is percentage?Rather than being stated as a fraction, a percentage is a piece of a whole expressed as a number between 0 and 100. Nothing is zero percent; everything is 100 percent; half of something is 50 percent; and nothing is zero percent. You split the part of the whole by the whole and multiply the result by 100 to get the percentage.
According to question:To calculate this, we first need to find out how much Max's original swim time will decrease by 30%. We can do this by multiplying his original swim time by 0.3:
60 minutes x 0.3 = 18 minutes
This means that Max will decrease his original swim time by 18 minutes during the triathlon.
To find out Max's new swim time during the triathlon, we need to subtract the amount of time he will decrease from his original swim time:
60 minutes - 18 minutes = 42 minutes
Therefore, Max's swim time during the triathlon would be 42 minutes.
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Jeriel is going to invest in an account paying an interest rate of 6.5% compounded continuously. How much would Jeriel need to invest, to the nearest cent, for the value of the account to reach $137,000 in 5 years?
Jeriel would need to invest approximately $98,986.25 for the value of the account to reach $137,000 in 5 years, assuming continuous compounding.
How much would Jeriel need to invest for the account to reach the accrued amount?The formula accrued amount compounded continuously is expressed as;
A = P × e^(rt)
Where A is accrued amount, P is principal, r is interest rate and t is time.
In this case, we are given that the final amount to be $137,000, the interest rate is 6.5% and the time is 5 years.
We want to solve for Principal P.
First, convert R as a percent to r as a decimal
r = R/100
r = 6.5/100
r = 0.065 per year
Plug these values into the above formula and solve for P.
A = P × e^(rt)
P = A / e^(rt)
P = 137,000.00 / e^(0.065 × 5)
p = $98,986.25
Therefore, the value of the principal P is $98,986.25.
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an architect needs to make a scale drawing of a home. the width w of the home in the drawing, In inches, is given by the equation w/0.6=9.5. what is the width of the home in the scale drawing?
Answer: 5.7 inches
Step-by-step explanation:
To find the width of the home in the scale drawing, we can use algebra to solve for w.
First, we can simplify the equation w/0.6 = 9.5 by multiplying both sides by 0.6:
w/0.6 * 0.6 = 9.5 * 0.6
w = 5.7 inches
Therefore, the width of the home in the scale drawing is 5.7 inches.
The triangle shown is rotated about line m.
A triangle with side lengths of 6 centimeters, 8 centimeters, and 10 centimeters is shown. The triangle is rotated about line m at the side with length 8 centimeters.
What is the approximate base area of the resulting three-dimensional figure?
Area of a circle: A = πr2
38 sq. cm
113 sq. cm
201 sq. cm
314 sq. cm
The resulting three-dimensional figure has a base area of 50.27 square centimetres. Option (D) 314 sq. cm is the correct answer (rounded to the nearest whole number).
When a triangle is rotated 360 degrees around one of its sides, it forms a cone with a base equal to the rotated side's length and a height equal to the perpendicular distance from the cone's apex to the rotated side.
In this case, the rotated side is 8 cm long. The Pythagorean theorem can be used to calculate the perpendicular distance from the apex of the cone to the rotated side. Heron's formula can be used to calculate the triangle's height:
s =(6+8+10)/2 = 12
(s(s-6)(s-8)(s-10)) = (12(6)(4)(2)) = 243
The triangle's height is:
h = 2 * Area / 8 = 3√3
The radius of the cone's base is 8/2 = 4 cm. As a result, the volume of the cone is as follows:
V = (1/3) * π * r^2 * h = (1/3) * π * 4^2 * 3√3 ≈ 50.27 cm^3
The resulting three-dimensional figure has the same base area as a circle with a radius of 4 cm, which is:
A = π * r^2 = π * 4^2 ≈ 50.27 cm^2
As a result, the resulting three-dimensional figure has an approximate base area of 50.27 square centimetres. Option (D) 314 sq. cm is the correct answer (rounded to the nearest whole number).
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Answer: answer is d) 314 sq. cm
Step-by-step explanation: hope this helps!
Dirk is replacing the rectangular mirror in his bathroom. The mirror is 2 1 2 meters wide, and it has an area of 3 3 4 square meters. How tall is the mirror? Write your answer as a whole number, proper fraction, or mixed number. meters
Answer:
1 1/2 m
Step-by-step explanation:
A = LW
3 3/4 = L × 2 1/2
15/4 = 5L/2
L = 15/4 × 2/5
L = (3 × 5 × 2)/(2 × 2 × 5)
L = 3/2 = 1 1/2
Answer: 1 1/2 m
number 5 goes through the device and the result is 25 . what would a possible rule for machine B be ?
Answer: multiplied by 5 or squared
Step-by-step explanation:
If the number 5 goes in and 25 is the result, the rule could be multiplying by 5 or squaring the number that goes in (input).
5 x 5 = 25
5^2 = 25.
Tyler has 3 times as many books as Mia.
a. How many books does Mai have have if Tyler has: 15 books? 21 books? x books?
b. Tyler has 18 books. How many books does Mai have?
According to the equation, Mia has 7 books if Tyler has 21 books and Mia has 6 books if Tyler has 18 books.
What is equation?
An equation is a mathematical statement that indicates the equality of two expressions. It typically consists of two parts: the left-hand side and the right-hand side, separated by an equal sign (=).
a. If Tyler has 15 books, we can set up the equation:
Tyler = 3 x Mia
15 = 3 x Mia
Dividing both sides by 3, we get:
Mia = 5
Therefore, Mia has 5 books if Tyler has 15 books.
If Tyler has 21 books, we can set up the same equation:
Tyler = 3 x Mia
21 = 3 x Mia
Dividing both sides by 3, we get:
Mia = 7
Therefore, Mia has 7 books if Tyler has 21 books.
If Tyler has x books, the equation would be:
Tyler = 3 x Mia
x = 3 x Mia
Dividing both sides by 3, we get:
Mia = x/3
Therefore, Mia has x/3 books if Tyler has x books.
b. If Tyler has 18 books, we can set up the equation:
Tyler = 3 x Mia
18 = 3 x Mia
Dividing both sides by 3, we get:
Mia = 6
Therefore, Mia has 6 books if Tyler has 18 books.
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Clara's family has lunch at a restaurant. The total bill is 67.58. The bill includes 6% tax and 18% tip on the pre-tax amount. How much was the bill before tax and tip.
Answer:
$54.50
Step-by-step explanation:
$67.58 after 6% tax and 18% tip
Let x = pretax and pre-tip amount.
The amount of tax is 0.06x.
The amount of tip is 0.18x.
The total amount is x + 0.06x + 0.18x = 1.24x.
The amount after tax and tip is $67.58.
1.24x = 67.58
x = 67.58/1.24
x = 54.5
Answer: $54.50