There are 12 books on a shelf. 7of these books are new. (a) What is the ratio of new books to used books? (b) What is the ratio of all books to used books?

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asked Jul 25, 2016 155k views

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Ellic · Answer 1 · 2016-07-30T09:06:17+0000

(a) What is the ratio of new books to used books?

New books = 7

Used books = 12 - 7 = 5

Ratio = 7:5

(b) What is the ratio of all books to used books?

All books = 12

Used books = 5

Ratio = 12:5

There are 12 books on a shelf. 7of these books are new. (a) What is the ratio of new books to used books? (b) What is the ratio of all books to used books?

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