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: 23

Answer

1.5 hr

Work Step by Step

90 min = hr Use a unit fraction with hour (the unit for your answer) in the numerator, and minute (the unit being changed) in the denominator. Because 60 minute (min) = 1 hour (hr), the necessary unit fraction is (1 hour)/(60 minute) Multiply 90 times the unit fraction. 90 * (1 hour)/(60 minute) = 3/2 hr= 1.5 hr
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.