Basic College Mathematics (9th Edition)

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

Chapter 5 - Ratio and Proportion - 5.4 Solving Problems - 5.4 Exercises: 13

Answer

$x=10$

Work Step by Step

We are given the proportion $\frac{8}{x}=\frac{24}{30}$. We can set the cross products equal to each other and solve for the unknown variable. $8\times30=x\times24$ $240=24x$ Divide both sides by 24. $x=10$
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