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kvv77 [185]
3 years ago
12

The teachers’ editions of a statistics textbook sell for $150 each, and students’ editions of the book sell for $50 each. Which

function can be used to find the average cost per book if two teachers’ editions and x students’ editions are purchased?
Mathematics
2 answers:
Novay_Z [31]3 years ago
7 0

Answer:

(300 + 50x)/(2 + x)

Step-by-step explanation:

Let the cost of teachers' edition books be t

Let the cost of students' edition books be s

So t = 150; s = 50

Then the total cost of 2 teachers' editions and x students' editions is 2t + sx = 2 × 150 + 50x = 300 + 50x.

The total number of books is 2 + x.

So the average cost per book is (300 + 50x)/(2 + x)

ycow [4]3 years ago
7 0

Answer:

the answer is D.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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patriot [66]
8.129
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balu736 [363]

\frac{1}{4} represents the amount of fabric Susanna needed.

Step-by-step explanation:

Given,

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Keywords: fraction, multiplication

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5 0
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Cylinder A has a radius of 1 m and a height of 4 m. Cylinder B has a radius of 2 m and a height of 4 m. What is the ratio of the
Svetlanka [38]

Note: The volume of a cylinder is:

radius² × π × height

First lets work out the volume of Cylinder A:

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             = 4π  m³

Now lets work out the volume of Cylinder B

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__________________________________________

Now lets compare the volumes ( Cylinder A : Cylinder B)  :

4π : 16π

Lets simplify this by dividing both sides by 4π:

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_____________________________________________________

Answer:

Option b) 1 : 4

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