Answer
64.4 kilometers per hour
Work Step by Step
Using unit analysis and known unit conversions, we obtain:
$$\frac{40 mi}{hr} \times \frac{1.61km}{mi}=64.4 \ km/h$$
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: 44
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