At a used book sale,5 books cost $15. How many books can u buy for $21

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asked Aug 3, 2021 186k views

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Ben Clarke · Answer 1 · 2021-08-08T20:08:05+0000

Answer:

7 books

Explanation:

Since you know that 5 books cost $15, you can assume that each book costs $3. Since this is your assumption (which we know is true) you can divide 21 by 3, which gives you 7.

At a used book sale,5 books cost $15. How many books can u buy for $21

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