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 421: 65


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. $\frac{x}{8000} = \frac{13.4}{100}$ $100x = 13.4\times8000$ $\frac{100x}{100} = \frac{107200}{100}$ $x = 1072$
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