Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 10 - Cumulative Review: 37

Answer

775 freshmen

Work Step by Step

$\frac{p}{100}=\frac{a}{b}$ Cross multiply to solve the percent proportion. $\frac{4}{100}=\frac{31}{b}$ $4b=100\times31$ $4b\div4=3100\div4$ $b=775$
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