Basic College Mathematics (9th Edition)

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

Chapter 7 - Measurement - Test: 3

Answer

2.25 hr

Work Step by Step

Use a unit fraction with hour (the unit for your answer) in the numerator, and min (the unit being changed) in the denominator. Because 1 hour = 60 min, the necessary unit fraction is (1 hr)/(60 min) Multiply 135 min times the unit fraction 135 min * (1 hr)/(60 min) = 9/(4 ) hr = 2.25 hr
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