jailynnprincess jailynnprincess

13-02-2017
Mathematics

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The ratio of books to magazines is 9:11 what percent of the reading materials are books

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SapphireMoon SapphireMoon

16-02-2017

A 9:11 ratio means that books are 9/20 of the reading materials. 9/20 x 100 = 45%. Get it?

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