Basic College Mathematics (9th Edition)

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

Chapter 6 - Percent - 6.4 Using Proportions to Solve Percent Problems - 6.4 Exercises: 43

Answer

a. 52.80 b. 187.20

Work Step by Step

a. Whole= 240, percent= 22. Find the part. $\frac{x}{240}=\frac{22}{100}$ Write the fraction in the lowest terms: $\frac{x}{240}=\frac{11}{50}$ Cross products: $50x=2640$ Solve for x. Round to the nearest tenth if necessary: $x=52.80$ b. Subtract the amount withheld from the total income earned. $240-52.8=187.20$
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