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 - Page 374: 47

Answer

$x\approx23.08$

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. $15\times100=x\times65$ $1500=65x$ Divide both sides by 65. $\frac{1500}{65}=\frac{65x}{65}$ $x\approx23.08$
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