erona08 erona08

15-10-2020
Mathematics

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

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fmar4872 fmar4872

15-10-2020

Answer:

7 books

Step-by-step explanation:

first divide 15 and 5 = 3 dollars per book

then divide 21 and 3 = 7

So you can buy 7 books with 21 dollars

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