Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 7 - Measurement - 7.1 Problem Solving with U.S. Measurement Units - 7.1 Exercises - Page 486: 42

Answer

2 weeks.

Work Step by Step

336 hr = wk Use the unit fraction $\frac{1 day}{24 hours}$ to change hours to days and the unit fraction $\frac{1 week}{7 days}$ to change days to week. Notice how all the units divide out except week, which is the unit you want in the answer. 336 hr * $\frac{1 day}{24 hours}$ * $\frac{1 week}{7 days}$= 2 weeks.
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