Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 7 - Measurement - 7.1 Problem Solving with U.S. Measurement Units - 7.1 Exercises - Page 484: 55

Answer

$$2.23 \frac{\$}{pound}$$

Work Step by Step

We use unit conversions to solve the problem. To do this, we multiply by different fractions until every unit except the final unit we want is cancelled out. Doing this, we find: $$ \frac{2.79 \ dollars}{20 \ ounces} \times \frac{16 \ ounces}{pound} \\ = 2.23 \frac{\$}{pound}$$
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