Answer
4.1 miles per hour
Work Step by Step
Using unit analysis and known unit conversions, we obtain:
$$\frac{6\ ft}{sec} \times \frac{miles}{5280ft}\times \frac{3600s}{hr}=4.1\ mph$$
Note, the units cancel to miles/hr.
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 1, Equations and Inequalities - 1.1 Apply Properties of Real Numbers - 1.1 Exercises - Skill Practice - Page 7: 42
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