Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 5 - Ratio and Proportion - 5.4 Solving Problems - 5.4 Exercises - Page 356: 6



Work Step by Step

We are given the proportion $\frac{5}{x}=\frac{20}{8}$. We can set the cross products equal and solve for the unknown variable. $x\times20=5\times8$ $20x=40$ Divide both sides by 20. $x=2$
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