Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 6 - Percent - 6.4 Using Proportions to Solve Percent Problems - 6.4 Exercises - Page 417: 24



Work Step by Step

Use percent proportion. $\frac{209}{x}=\frac{55}{100}$ Cross products: $11x=4180$ Divide by 11: $\frac{11x}{11}=\frac{4180}{11}$ $x=380$
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