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: 50

Answer

a. 1,190 people recycle bottles and cans b. 980 people recycle paper products and newspapers

Work Step by Step

a. Percent=68 ;whole= 1750. $\frac{68}{1750}=\frac{x}{100}$ Write the fraction in the lowest terms: $\frac{68}{1750}=\frac{17}{25}$ Cross products: $25x=29750$ Solve for x: $x=1190$ b.Percent=56 ;whole= 1750. $\frac{x}{1750}=\frac{56}{100}$ Write the fraction in the lowest terms: $\frac{x}{1750}=\frac{14}{25}$ Cross products: $25x=24500$ Solve for x: $x=980$
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