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5 books cost $15. How much do 7 books cost?
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1 vote
5 books cost $15. How much do 7 books cost?

User Jshawl
by
3.3k points

2 Answers

2 votes
ANSWER:
$21

STEP BY STEP:
Each book is 3 dollars, so we multiply 7 by 3, and you get 21.

hope this helps
User Zsolt Boldizsar
by
3.9k points
4 votes
5 / 15 = 3

So 3 x 7 = 21
User Guitarlass
by
3.9k points
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