nobblee nobblee

16-12-2020
Mathematics

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At a used book sale, 5 books cost $15.
What is the cost per book?
Type your answer here...
A
fx
At this rate, how many books can you buy for $21?
Type your answer here...
A

Respuesta :

jdorrity310 jdorrity310

16-12-2020

Every book would be $3 so you could buy 7 books for $21

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16-12-2020

Answer:

The first question is simple. It's $3 for 1 book. The second question is 7.

Step-by-step explanation:

15/5 = 3

15/5 = 21/x

15x = 105

7

Answer Link

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