## Basic College Mathematics (9th Edition)

Published by Pearson

# Chapter 7 - Measurement - 7.1 Problem Solving with U.S. Measurement Units - 7.1 Exercises: 52

302,400 sec.

#### Work Step by Step

3 $\frac{1}{2}$ Days = sec Use the unit fraction $\frac{24 hours}{1 days}$ to change days to hours, next use the unit fraction $\frac{60 min}{1 hour}$ to change hours to min and last use the unit fraction $\frac{60 sec}{1 min}$ to change min to sec. Notice how all the units divide out except second, which is the unit you want in the answer. $\frac{7}{2}$ days *$\frac{24 hours}{1 days}$ * $\frac{60 min}{1 hour}$* $\frac{60 sec}{1 min}$ = 302,400 sec

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