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There are 13 books on a shelf. 4 of these books are new. what is the ratio of used books to new books? what is the ratio of all books to used books?
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There are 13 books on a shelf. 4 of these books are new.

what is the ratio of used books to new books?
what is the ratio of all books to used books?

User Sean Hagen
by
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2 Answers

3 votes
Hey there!

13 shelfs, and 4 are used . . .

13 - 4 = 9

This means that 9 of the books are used.

9 + 4 = 13

The ratio is 9:4 <-----------

Hope this helps you.
Have a great day!
User Dumisani Kunene
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8.4k points
3 votes
the ratio of used books to new books is 9:4 because 13-4=9 and the ratio of all books to used books is 13:4 because there are 13 total books and 4 used books
User Orar
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8.2k points
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