Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapters 1-6 - Cumulative Review Exercises: 49

Answer

45 children

Work Step by Step

$\frac{9}{4}$=$\frac{x}{20}$ 4x=9(20) 4x=180 x=45
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