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: 4

Answer

$x=5$

Work Step by Step

We are given the proportion $\frac{x}{6}=\frac{15}{18}$. We can setting the cross products equal to each other and solve for the unknown variable. $x\times18=6\times 15$ $18x=90$ Divide both sides by 18. $x=5$
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