Answer:
The correct answer is B. {0, 20, 40, 60, 80, 100, 120}
Step-by-step explanation:
1. Let's check all the information given to answer this question correctly:
Rate of each piano lesson Blake gives = US$ 20
Blake can give between 0 and 6 lessons every evening
Earnings = Number of lessons * Rate of each lesson
2. What is the range of this relation?
Let's recall that the domain of a relation is the set of all values for which the relation is defined, and the range of the relation is the set of all values that the relation takes.
It means that the domain of the relation in this case is the number of lessons that Blake can give every evening:
{0, 1, 2, 3, 4, 5, 6}
And the range of this relation is the amount Blake earns in an evening depending on the number of lessons he gives:
{0, 20, 40, 60, 80, 100, 120}
The correct answer is B. {0, 20, 40, 60, 80, 100, 120}
If the answer is correct I will give brainilest!
whats the numerator for the following rational expression 3/k + 4/k =?\k
Answer:
7
Step-by-step explanation:
3+4 as the denoninators are the same
Answer:
[tex]\Longrightarrow: \boxed{\sf{\dfrac{7}{k} }}[/tex]
Step-by-step explanation:
You have to find the numerator number by adding it to the denominator.
[tex]:\Longrightarrow \sf{\dfrac{3}{k}+\dfrac{4}{k}=\dfrac{?}{k} }[/tex]
[tex]\Longrightarrow: \sf{\dfrac{3+4}{k}}[/tex]
First, add the numbers from left to right.
[tex]\sf{\dfrac{3+4}{k}=\boxed{\sf{\dfrac{7}{k}}}[/tex]
Therefore, the correct answer is 7/k.I hope this helps, let me know if you have any questions.
helppppppppppppppppp
Answer:
54 degrees
Step-by-step explanation:
21/36 <- divide 21 by 36 first
=0.58333
Around 54 degrees
please help me....asap
Answer:
D) 18 freshman, 18 sophmores, 30 juniors, 30 seniors
Step-by-step explanation:
ratio given:
320 : 300 : 500 : 510
320 = 300 and 500 = 510
therefore ratio of 300 : 300 : 500 : 500
Ratio of 300 : 500 = 18 : 30
18 : 18 : 30 : 30
Answer:
The last one
Step-by-step explanation:
You just have to find the percentage of each
First find the total
300+320+500+510=1630
1)freshman: (320÷1630)×100
2) sophomore:(300÷1630)×100
3) juniors:(500÷1630)×100
4)seniors:(510÷1630)×100
The rectangular prism below represents a box that is made completely out of
cardboard. Find the total square inches of cardboard made up by the box.
Answer:
I attached the answer
what is 1.244x2.92?can you explain
Answer: 3.63248
Step-by-step explanation:
I know the answer thats all
Answer:
3.632
Step-by-step explanation:
since 1.244 has 3 decimal places you can round off the answer to 3 d. p.
Logan saves the same amount of money each month for college. his current total savings is 300m2 120m 180 dollars. which factorization could represent the number of months and amount of a monthly deposit in dollars? 4m(75m2 30m 40) 10m(30m2 12m 18) 30(10m2 4m 60) 60(5m2 2m 3)
If his current total savings is 300m²+120m+180 dollars. The factorization that represent the months and monthly deposit is: 60(5m²+2m+3)
FactorizationGiven:
Expression=300m²+120m+180
Factorize
Extraction of common factor
60(5m²+2m+3)
Expand
60×5m²+60×2m+60×3
=300m²+120m+180
Therefore the factorization that represent the months and monthly deposit is: 60(5m²+2m+3).
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Answer: D
Step-by-step explanation:
find the measure of arc ce please
Answer: 95 degrees
Step-by-step explanation:
there are two fifth grade classes that recycled a total of 36.8 kilograms of paper this week, If each class recycled the same amount, how many kilograms did each class recycle? please explain n help asap tysm <333
Answer:
18.4 kilograms per class.
Step-by-step explanation:
Since each class recycled the same amount, we divide the total (36.8 kilograms) by the number of classes (2). 36.8/2 = 18.4 This means that each class recycled 18.4 kilograms of paper.
PLEASE HELP!!! I'LL MARK BRAINLIEST!!! PLEASE HELP!!!
For the three-part question that follows, provide your answer to each question in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part of your response as Part A, Part B, and Part C.
Solve the system of equations below using elimination.
4x + 4y = -37
2x + 5y = -17
Part A: What is the x-value?
Part B: What is the y-value?
Part C: In one paragraph, using your own words, explain the work you did to find the answers to parts A and B.
Answer:
Part A: x = -39/4 or -9.75
Part B: y = 1/2 or .5
Step-by-step explanation:
Part C: Multiply the bottom equation by 2, obtaining 4x + 10y = -34. Subtract the top equation (4x + 4y = -37) from this equation, obtaining 6y = 3. Solving this, y = 1/2
(y = .5). Substitute this value of y into the equation 4x + 4y = -37, and then solve for x:
4x + 4(1/2) = -37
4x + 2 = -37
4x = -39, so x = -39/4 or -9.75
15 men can do a piece of work in 80 days. How long will it take to complete the work of 5 men are reduced?
Answer:
120 days
Step-by-step explanation:
Remark
It's an inverse relationship. As the number of men go up, the 80 gets smaller. As the number of men goes down, the number of days will get larger.
Equation
80 = k / 15 Multiply both sides by 15
Solution
80*15 = 15 * k/15
1200 = k
That means that k is number that 80 men will produce. It is the number that relates men and days.
So now you want to put 10 men where 15 were before and see what that does to the number of days.
days = 1200/10
days = 120
Answer
It will now take 120 days.
15 men can do a piece of work in 80 days. How long will it take to complete the work if 5 men are reduced?
Explanation -:In this question we are provided that 15 men can do a work in 80 days and we are asked to calculate the time if 5 men are reduced that means we need to calculate the no. of days 10 men will take to do the same work.
There are two methods to solve this question
Unitary MethodMethod of proportion[tex] \small \red{ \underline{\bf{ Unitary \: Method }}}[/tex]
15 men can do a piece of work in 80 days
1 men can do a piece of work in 80 × 15 days
10 men can do a piece of work in [tex]\dfrac{80 × 15}{10}[/tex] = 120 days
Hence, 15 men can do a piece of work in 80 days. It will 120 days to complete the work if 5 men are reduced.[tex] \rule{40mm}{5pt}[/tex]
[tex] \small \orange{ \underline{\bf{ Method \: of \: proportion}}}[/tex]
Let us assume that 10 men can do a piece of work in x days.
[tex] \begin{array}{cc} \bf{Number \: of \: men} & \bf {Number \: of \: days} \\ 15&80 \\ 10&x\end{array}[/tex]
[tex] \small\bf{ 15 : 10 :: x : 80}[/tex]
[tex] ➲ \: \small\rm{10 \times x = 80 \times 15} [/tex]
[tex]➲ \: \small\rm {x = \dfrac{80 \times 15}{10} = 120 \: days }[/tex]
x = 120
Hence, 15 men can do a piece of work in 80 days. It will 120 days to complete the work if 5 men are reduced.[tex] \rule{72mm}{6pt} [/tex]
HEELLPP WILL GIVE BRAINLEST TO WHOEVER ANSWERS.
Answer:
B
Step-by-step explanation:
The questions says that the graph is shifted down 7 units, which means it will affect the y-intercept.
Remember: If it's shifted up, it's positive & if it's shifted down, it's negative.
Answer:
B
Step-by-step explanation:
f(x)=9x
g(x)=9^x-7
if shifted down its negative ,if shifted up its positive.
Write an equation of a line in slope-intercept form with the given slope and y-intercept.
slope: 8, y-intercept: -3
What iS the function rule for the line?
Answer:
It’s b
Step-by-step explanation:
Make b the subject of the formula [tex]a=\sqrt{b + 6[/tex]
Hi!
We want to solve for [tex]b[/tex]
Given:
[tex]a=\sqrt{b+6}[/tex]
Square both sides:
[tex]a^2=\sqrt{b+6} ^2[/tex]
Simplify:
[tex]a^2=b+6[/tex]
Subtract [tex]6[/tex] from both sides:
[tex]a^2-6=b+6-6[/tex]
Simplify:
[tex]a^2-6=b[/tex]
Flip:
[tex]b=a^2-6[/tex]
Hence, [tex]b[/tex] is the subject of the formula.
6. Find the area of the shaded region of the circle. The
radius is given in inches.
Answer:
75.4
Step-by-step explanation:
S = r^2 * alpha * pi
where alpha is central angle = 135
S = 8^2 * 135/360 * pi = 12 * pi ~ 75.4
What is the area of a rectangular field which is 25 meters long and 15 meters wide
Answer:
375 m
Step-by-step explanation:
25 x 15 =
375
what is the area of the circle in terms of PI?
To find the area of the circle:
⇒ must know the area's formula ⇒ [tex]\pi r^2[/tex]
r --> length of radiusLet's consider the information given
diameter's length is 7 in⇒ the radius' length is half of the diameter
⇒ thus the radius' length is 3.5 in
Let's calculate the area:
[tex]Area=\pi r^2=\pi (3.5^2)=12.25\pi in^2[/tex]
The problem asks us to leave the answer in terms of '[tex]\pi[/tex]' which means that we won't multiply '[tex]\pi[/tex]' to the final answer, but leave it there,
Answer: 12.25[tex]\pi in^2[/tex] or Choice (B)
Hope that helps!
Please solve it
The image is already attacked so open it and see if you can solve the question
Answer:
Step-by-step explanation:
How long will it take a deposit
of $4500 at an annual simple
interest rate of 5.75% to earn
$1035?
Answer:
4
Step-by-step explanation:
you times 4500 by 0.0575 and then divide 1035 by that number then you get 4
The side lengths of the base of this right triangular prism are 3 ft, 4 ft, and 5 ft. The height of the prism is 9 ft. What is the total surface area of the prism in square feet? Enter your answer in the box.
Answer:
480
Step-by-step explanation:
Mr.Hawkins is covering a wall with wallpaper. The rectangular wall measure 14 feet by 12 feet. each square foot of wallpaper cost $2.90. Find the cost of covering the wall with wallpaper
Answer:
$57.93
Step-by-step explanation:
14 x 12 = 168
168/2.9
A supervisor finds the mean number of miles that the employees in a department live from work. he finds x overbar = 29 and s = 3.6. which mileage is within a z-score of 1.5?
The mileage that the supervisor will achieve that is within a z-score of 1.5 is; 23.6
How to find the z-score?Formula for z-score in statistics is;
z = (x' - μ)/s
Where;
x' is sample mean
μ is population mean
s is sample standard deviation
We are given;
x' = 29
Standard deviation; s = 3.6
z = 1.5
Thus;
1.5 = (29 - μ)/3.6
μ = 29 - (1.5 × 3.6)
μ = 23.6
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How can you find an output number when you know an input number?
Answer:
You have to add 1.5 to each input number to find its corresponding output number.
Need number 6
20 points!!!!!
What are the values of a and b in the relative frequency table for the survey results? round answers to the nearest percent. a = 33%, b = 73% a = 68%, b = 43% a = 25%, b = 32% a = 33%, b = 43%
The values of a and b are 33% and 42.7% respectively.
Calculations and Parameters:Given:
The number of students that like blue uniform is only as 32,
The number of students that like gold uniform is only as 25,
The number of students that like blue and gold uniforms is 12
The number of students that like neither blue nor gold uniform as 6.
Then, the total number of students interviewed are 75 students.
The relative frequency of the students who like blue is 25, therefore,
25/75= 1/3= 0.33
= 33%
The relative frequency of the students that like blue but not gold is 32, therefore,
32/75= 0.427
=42.7%
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The permieter of a square is 52 cm. Calculate the area of the square
Answer:
169 cm²
Step-by-step explanation:
Since it’s a square, the side lengths will all be equalDivide 52 by 4This gives you a side length of 1313² is 169type the correct answer in the box. use numerals instead of words. if necessary, use / for the function bar. polygon MNOPQ is dilated by a scale factor of 0.8 with the origin as the center of dilation. resulting in the image M'N'OP'Q. The coordinates of point M are (2,4) and the coordinates of point N are (3,5) .
THE SLOPE OF M'N' is blank
Answer: 1
Step-by-step explanation:
0.8 is the slope of the line M'N'.
What is the Linear equation?A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.
So, the coordinates of M' are (0.82, 0.84) = (1.6, 3.2), and the coordinates of N' are (0.83, 0.85) = (2.4, 4).
Now, we can find the slope of line M'N' using the slope formula:
slope of M'N' = (y₂ - y₁) / (x₂ - x₁)
where (x₁, y₁) = (1.6, 3.2) and (x2, y2) = (2.4, 4).
slope of M'N' = (4 - 3.2) / (2.4 - 1.6)
the slope of M'N' = 0.8
Therefore, the slope of line M'N' is 0.8.
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Johnny is 21 years old he is three times as old as Becky write and solve an equation to determine Becky's age.
Answer:
Becky is 7 years old.
Step-by-step explanation:
Let b - Becky's age
Equation - 3b = 21
Divide both size by 3 to isolate the variable.
21/3 is 7.
If Johnny is 21 years old he is three times as old as Becky then age of Becky is 7 years.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given that Johnny is 21 years old
Johnny is three times as old as Becky.
We have to find the age of Becky.
Let x be the age of Becky.
As Johnny is three times as old as Becky.
We can write the equation as below
21=3x
Divide both sides by 3
7=x
Hence, if Johnny is 21 years old he is three times as old as Becky then age of Becky is 7 years.
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Flori’s Flower shop contains fewer than 150 flowers. All the flowers are purple, yellow, red or white. The ratio of purple flowers to yellow flowers is 1 : 2, the ratio of yellow flowers to red flowers is 3 : 4 and the ratio of red flowers to white flowers is 5 : 6. How many flowers are there in Flori’s shop?
Flori's Flower Shop have 48 white flowers, 40 red flowers, 30 yellow flowers and 15 purple flowers, whose sum equals 133 flowers, which is fewer than 150 flowers.
How to determine the quantity of flowers in a flower shop
Flori's Flower shop owns a quantity less than 150 flowers, in which there are four kinds of flowers according to color: (purple - p, yellow - y, red - r, white - w), each variable represents positive integers. Now we proceed to construct the system of equation that describes the situation:
z < 150 (1)
p + y + r + w = z (2)
p = y/2 (3)
y = 3 · r/4 (4)
r = 5 · w/6 (5)
By (1) and (3) in (2):
y/2 + y + r + w < 150
By (4):
3 · y/2 + r + w < 150
9 · r/8 + r + w < 150
17 · r/8 + w < 150
By (5):
85 · w/48 + w < 150
133 · w/48 < 150
133 · w < 7200
w < 54.135
Now we assume that w = 48, then we have the following solution for the flower shop: r = 40, y = 30, p = 15.
Flori's Flower Shop have 48 white flowers, 40 red flowers, 30 yellow flowers and 15 purple flowers, whose sum equals 133 flowers, which is fewer than 150 flowers. [tex]\blacksquare[/tex]
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