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28-05-2017
Mathematics

contestada

There are 15 books on a shelf. 6 of these books are new.(
a. What is the ratio of all books to used books?(
b. What is the ratio of new books to used books?

Respuesta :

28-05-2017

The ratio of all books to used books = all books ÷ used books = 15 / (15-6) = 5/3

The ratio of new books to used books = new books ÷ used books = 6 / 9 = 2/3

I hope that helps!

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