Basic College Mathematics (9th Edition)

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

Chapter 5 - Ratio and Proportion - Review Exercises: 29

Answer

$x=400$

Work Step by Step

We can set the cross products of the given proportion equal to each other and then solve for the unknown variable. $100\times56=14\times x$ $5600=14x$ Divide both sides by 14. $\frac{5600}{14}=\frac{14x}{14}$ $x=400$
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