Answer
$x=380$
Work Step by Step
Use percent proportion.
$\frac{209}{x}=\frac{55}{100}$
Cross products:
$11x=4180$
Divide by 11:
$\frac{11x}{11}=\frac{4180}{11}$
$x=380$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
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
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