Answer
1072 in the 20-29 age group were pulled over.
Work Step by Step
8000 is the whole. The percent is 13.4%. The part is unknown.
$\frac{x}{8000} = \frac{13.4}{100}$
$100x = 13.4\times8000$
$\frac{100x}{100} = \frac{107200}{100}$
$x = 1072$
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 421: 65
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