Answer:
Probably 128 km/h, but maybe 98.5 km/h. See below.
Step-by-step explanation:
What does "at the same time" mean?
If it means that he covered the 240 km in the same time as he convered the 80 km, then this is how you solve it:
80 km in 1.25 hour
240 km in 1.25 hour
Total distance: 80 km + 240 km = 320 km
Total time: 1.25 hour + 1.25 hour = 2.5 hour
average speed = (total distance)/(total time) = 320 km / 2.5 hour = 128 km/h
If it means he covered the 240 km in the same time he covered the 80 km plus the rest, then this is how you solve it:
80 km in 1.25 hour
240 km in 1.25 hour + 45 min = 240 km in 1.25 houir + 0.75 hour = 240 km in 2 hour
Total distance: 80 km + 240 km = 320 km
Total time: 1.25 hour + 2 hour = 3.25 hour
average speed = (total distance)/(total time) = 320 km / 3.25 hour = 98.5 km/h
What is the constant of proportionality shown in the
table?
Answer:
0.5
Step-by-step explanation:
An equation is written as :
y = kxk is the constant of proportionalityTaking the first row data (x = 2, y = 1),
y = kx1 = 2kk = 1/2k = 0.5Answer:
Option A, 0.5
Step-by-step explanation:
Step 1: Determine the slope/proportionality
[tex]Slope = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]Slope = \frac{1.5-1}{3-2}[/tex]
[tex]Slope = \frac{0.5}{1}[/tex]
[tex]Slope =0.5[/tex]
Answer: Option A, 0.5
I need help pls I need to get to 80%
Answer:
False (no)
Step-by-step explanation:
A polygon needs at least three straight sides and angles
=
An apple costs twice as much as a banana.
Using the equations 2a + 4b = 2.00 and
a=2b, where a is the cost of one apple
and b is the cost of one banana, what are
a and b?
zat 45:28
=
A a= $0.25; b = $0.25
(B) a= $0.25; b = $0.50
C a= $0.50; b = $0.25
=
D a= $0.50; b = $0.50
10. Which statement is false?
Answer:
C is true
Step-by-step explanation:
The only true answer is C.
If a is 2 times greater than b, then:
A. is not possible because both sides are equal
B. is not possible because b is 2 times greater
D. is not possible because both sides are equal
Simplify the expression 4(2f−5g) + 6g.
Answer:
8f-14g is the answer
Step-by-step explanation:
The height of the rectangle and the triangle are the same. The base of the triangle is half the base of the rectangle.
What is the area of the composite figure?
A. 225
B. 300
C. 375
D. 450
Step by step explanation: The last answer i wrote was wrong, so i retook the quiz and got 100% and this was right.
Answer:
.C ,375
I HOPE THIS helps i just know i got connect shons
The vertices of a rectangle are located at (2, 5), (4, 3), (-2, -3) and (-4, -1).
What is the approximate perimeter of the rectangle?
Answer:
8
Step-by-step explanation:
P=2(l+w)=2·(1+3)=8 The length was 1 and the width was 3.
The inequality 6 -fx < x - 9 is equivalent to
Answer:
f<−1+15/x
Step-by-step explanation:
Factor out the greatest common factor from the following polynomial.
3 2
15a + 3a + 1
Q 06. Payson is thrice as fast as Amen at completing a task. They both pick up a task together, and complete it in 5 days. How many days will Amen take to do it alone? Ops: A. O 10 days B. O 20 days C. O 25 days D. O 15 days
Fraction are ratio of two integers. It will take Amen 20 days to do the task alone
Proporions and fractionsFrom the given question, we have the following information
Let the number of days Amen can take to complete a task be x
If Payson is thrice as fast as Amen at completing a task, then the number of das Payson takes will be 3x
If they both pick up a task together, and complete it in 5 days, then;
1/x + 1/3x = 1/5
Find the LCM
3+1/3x = 1/5
4/3x = 1/5
Cross multiply
3x = 20
Determine the time taken by Amen:
x =20/3
This shows that it will take Amen 20 days to do the task alone
Learn more on proportions here: https://brainly.com/question/19994681
Evaluate without using a mathematical table
1000(√0.0128÷200)
Answer:
0.5656854249
Step-by-step explanation:
1000(0.0128/200)
1000(0.11314/200)
1000(0.0005656854)
=0.5656854249
how to find the missing angle when given two sides of a right triangle?
Answer:
Step 1 The two sides we know are Opposite (300) and Adjacent (400).
Step 2 SOHCAHTOA tells us we must use Tangent.
Step 3 Calculate Opposite/Adjacent = 300/400 = 0.75.
Step 4 Find the angle from your calculator using tan-1
2. Find m angle 1
73
88
60
80
Answer:
88°
Step-by-step explanation:
RULES:
angles on a straight line add up to 180 degreesangles in a triangle add up to 180 degreesso.
because of rule 1, we do 180-120 to get 60, to get that right corner angle. Now, we know 2 angles. So, (because of rule 2), we can do 60+32 = 92, and 180-92 = 88
So, 1 = 88
Hope this helps! If it doesn't make sense, feel free to ask me to explain it further.
- profparis
I have NO IDEA how to do! Please help with this one!!!! 50 pts
[tex]\displaystyle \int \dfrac{dx}{5x^2 -10x +15}\\\\\\=\displaystyle \int \dfrac{dx}{5(x^2-2x+3)}\\\\\\=\dfrac 1 5 \displaystyle \int \dfrac{dx}{x^2-2x+3}\\\\\\=\dfrac 15 \displaystyle \int \dfrac{dx}{x^2 -2x +1^2 -1 +3}\\\\\\=\dfrac 15 \displaystyle \int \dfrac{dx}{(x-1)^2+2}\\\\\\=\dfrac 15 \displaystyle \int \dfrac{du}{u^2 +\left(\sqrt 2 \right)^2}~~~~~~~~~;[x-1 =u \implies dx = du]\\\\\\\\[/tex]
[tex]=\dfrac 1 {5\sqrt 2} \tan^{-1} \left( \dfrac u{\sqrt 2}\right)+C~~~~~~;\left[\displaystyle \int \dfrac{dx}{a^2 +x^2} = \dfrac 1a \tan^{-1} \left( \dfrac xa \right) +C\right]\\\\\\=\dfrac{1}{5\sqrt 2} \tan^{-1} \left( \dfrac{x-1}{\sqrt 2}\right)+C[/tex]
I hunder percent agree.
I too hunder percent agree
I need tho know the answer to 9/10 divided by 6/1
Answer: 3/20
Step-by-step explanation:
Inital Equation:
[tex]\frac{9}{10}[/tex] ÷ [tex]\frac{6}{1}[/tex]
Find the Recipricol of 6/1:
It's: 1/6
Multiply the Recipricol of 6/1 (1/6) by 9/10
9/10 x 1/6 = 9/60
Simplify
9/60 = 3/20
Answer: 3/20
The width of a golden rectangle is 15 feet. Find the perimeter of the rectangle to the nearest foot
39 feet
64 feet
79 feet
72 feet
96 feet
In a golden rectangle, the sides of the rectangle are as per the golden ratio. The perimeter of the golden rectangle with a width of 15 feet is 79 feet.
What is a golden rectangle?In a golden rectangle, the sides of the rectangle are as per the golden ratio. The rectangle is given the name rectangle because of the fact that the ratio is the golden number 1.618.
In a golden rectangle, the sides of the rectangle are as per the golden ratio. Since the width of the rectangle is 15 feet, therefore, the length of the rectangle will be 1.618 times the width,
Length of the rectangle = 1.618 × 15 feet = 24.27 feet
Now, the perimeter of the rectangle can be written as,
[tex]\rm \text{Perimeter of the rectangle} = 2(Length+ Width) \\\\\text{Perimeter of the rectangle} = 2(24.27+15)\\\\\text{Perimeter of the rectangle} = 78.54 \approx 79\ feet[/tex]
Hence, the perimeter of the golden rectangle with a width of 15 feet is 79 feet.
Learn more about Golden Rectangle:
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Please help on math.
Answer:
255cm²
Explanation:
To find the area of the triangle we must us a formula which is base x height ÷ 2 divide. So on the left side it is 17 cm and on the right without the triangle it is 10 so the triangle is 7cm tall. Next on the bottom without the triangle it is 22 and with it is 12 so the base is 10 now we multiply them which will be 70 then divide it by 2 which is 35cm².
And dont forget the squared!!
In the accompanying diagram, angle ACD is an exterior angle of triangle ABC, angle A =3x, angle ACD is =5x, and angle B=50. What is the value of x ?
The value of x in the triangle ABC is 25.
How to find angles in a triangle?The interior angles of the triangle are given as m∠A = 3x and m∠B = 50°.
The exterior angle of the triangle is given as m∠ACD = 5x.
The sum of angle in a triangle is equals to 180 degrees. Therefore,
3x + 50 + (180 - 5x) = 180
3x + 50 - 5x + 180 = 180
3x - 5x + 50 + 180 = 180
-2x + 230 = 180
subtract 230 from both sides
-2x + 230 - 230 = 180 - 230
-2x = -50
divide both sidesby -2
-2x / -2 = -50 / -2
x = 25
learn more on triangles here: https://brainly.com/question/27100907
Joseph walks 10 times around the track at a rate of x laps per hour. She runs eight times around the track of a rate of 3X laps per hour. Write and simplify an expression for the total time it takes him to go around the track 18 times
The expression for the total time is:
T = (324/34x).
How to get the expression?He does 18 laps in total.
8 laps at a rate of 3x10 laps at a rate of x.The average rate for the whole 18 laps is the average of the rates (taking in account the number of laps made with each) so we get:
average rate = (8/18)*3x + (10/18)*x = (34x/18)
This means that he does (34x/18) laps per hour.
Then, the time needed to do 18 laps is:
T = (18/(34x/18)) = (324/34x).
If you want to learn more about rates:
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How would I solve I need to know Asap and what is the answer
Answer:
A) 5
Step-by-step explanation:
distance = √(distance between x coordinates² + distance between y coordinates²)
the horizontal distance between the two points is 4
the vertical distance between the two points is 3
to prove this, if you started at Q and went 4 points right and then 3 points up, you would get to P
distance = √(4²+3²) = √25 = 5
Convert the exponential to a logarithmic form: 10^4 = 10,000
Question 1 options:
A)
log 10 = 4
B)
log 4 = 10
C)
log 10,000 = 4
D)
log 4 = 10,000
Answer:
C
Step-by-step explanation:
Exponential form is y = b^x, with b as the base, and logarithmic form is x = log_b(y).
In this case, 10 is the base, 4 is x, and 10,000 is y. In logarithmic form, this can be changed into 4 = log_10(10,000). Logarithms with base 10 can also be written as 4 = log(10,000). Therefore C is the correct answer.
9) Center: (-2,9) Point on Circle: (-5, 18)
Answer:
[tex](x+2)^2+(y-9)^2=[/tex] 90
Step-by-step explanation:
The centre is (-2,9) so the first part of the equation will be (x+2)^2 + (y-9)^2 and to get the second half, you know the point on the circle which you can use to find the radius. So the triangle formed would be 3 long, 9 high and using Pythagoras you can do:
[tex]3^2+9^2=r^2[/tex]
9+81= [tex]r^2\\[/tex]
90 = [tex]r^2[/tex]
and this equation ends with r^2 so you can substitute that back into the equation so together it will be
[tex](x+2)^2+(y-9)^2=[/tex] 90
The mean per capita consumption of milk per year is 144 liters with a variance of 484. If a sample of 183 people is randomly selected, what is the probability that the sample mean would be less than 146.58 liters? Round your answer to four decimal places.
Answer:
12144
Step-by-step explanation11213123:
After learning so much about how art and culture are connected, it is time to explore different cultural pieces of art.
I WILL GIVE BRAINLIST
For this activity, you will search online and find a piece of art from four different cultures. You will need to copy or screenshot the four pieces of art that you decide on, and insert them into your written assignment.
You may choose any type of art from any culture that you like, but please keep in mind the appropriateness of your choices.
One you have selected your four pieces of art, you will answer several questions about each one and briefly discuss the piece.
Questions and points to discuss for each piece of art:
What culture is your piece of art from?
Why did you choose this piece?
What does this piece tell you about the culture?
Think daily life, food, celebrations and rituals, nature, and overall lifestyle.
How is this piece of art different from the rest of your choices?
Answer:
What culture is your piece of art from?
Italian Renaissance
Why did you choose this piece?
Beacuse its a beautiful piece of artwork made by one of my favorite artist.
Step-by-step explanation:
9876x 96- 703
WILL MARK BRAINLEST
Answer:
947393
Step-by-step explanation:
3/5 = 24/40 =?/60. what comes at the question mark?
Answer:
? = 36
Step-by-step explanation:
Knowing that 3/5 and 24/40 is equal
Therefore we can either use:
3/5 = ?/60 or 24/40 = ?/60
I will use 3/5 = ?/60
Let ? = x
Hence we have
3/5 = x/60
Multiply both sides by 10
6 = x/6
Multiply both sides by 6
x = 36
Therefore, the question mark = 36
Let's check the answer by Simplifying the fraction:
3/5 = 36/60
3/5 is in already simplify
36/60 simplify = 3/5
3/5 = 3/5
Thus, the question mark = 36
[RevyBreeze]
Step-by-step Solution:
Let the "?" be known as "x".
Given equation:
3/5 = 24/40 = x/60
Therefore, we obtain the following equations:
Equation 1: 3/5 = 24/40Equation 2: 3/5 = x/60Equation 3: 24/40 = x/60Clearly, the second and the third equation have the "x" variable included. Therefore, we will only focus on the second and third equations.
3/5 = x/6024/40 = x/60Note: We can choose any equation to solve for x. The value of x in both equations will be the same as 3/5 = 24/40.
Determining the "x" variable in Equation 2:
⇒ 3/5 = x/60⇒ 5x = 60 × 3 [Cross multiplication]⇒ 5x = 180 [Simplifying]⇒ 5x/5 = 180/5 [Dividing]⇒ x = 36 [Simplifying]Determining the "x" variable in Equation 3:
⇒ 24/40 = x/60⇒ 40x = 24 × 60 [Cross multiplication]⇒ 40x = 1440 [Simplifying]⇒ 40x/40 = 1440/40 [Dividing]⇒ x = 36 [Simplifying]Therefore, the value of "?" is 36.
The winners of a carnival game draw a ticket from a box to determine their prize. Each winner draws a ticket and places it back into the box before the next draw. Every winner has a 33% chance of getting cotton candy, a 46% chance of getting a shirt, and a 21% chance of getting a key chain.
The game operator wants to simulate what could happen for the next ten winners. So for each winner he generates a random whole number from 1 to 100. The range of values that the game operator can use to represent a winner is 1 to 3. What is the percentage of winners who got a shirt
Answer:
He generates a random whole number from 1 to 3.
Step-by-step explanation:
Each winner has 3 possibilities, gets cotton candy, gets a shirt, or gets a keychain. We can asign each of this possibiltiies a number, 1 for cotton candy, 2 for the shirt and 3 for a keychain. So, for a simulation, its enough to take one of this whole numbers for each winner.
Sal and Zack built a scale model of the Texas Capitol using a scale in which 2 inches represents 8 feet. The height of the Texas Capitol is 312 feet.
Problem
What is the height of the scale model in inches?
find the least common denominator for thes two ratioal expression -1/y 2/5yfind the least common denominator for thes two ratioal expression -1/y 2/5y
Answer: it is -1, because y has no more complete prime factors
Step-by-step explanation:
Pls pls pls pls help po
Answer:
1. you will multiply base times height:
16m * 12m = 192 sq m
2. same steps but just multiply it by two because its "twice as long"
18 cm * 6 cm = 108 * 2= 216
3. now for this one sice we are finding the base we will have to divide the 432 by 18 = 24
4. same steps like in question 1:
12 * 5 = 60
5. same steps like in question 1:
7 * 10 = 70
Step-by-step explanation:
hope this helps and have a great day!! :)