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 - Page 484: 11

Answer

a.) 2 min b.) 240 min

Work Step by Step

a.) 120 sec = 2 min You are converting from a smaller unit to a larger unit (a second is less than a minute), so divide. Because 60 sec = 1 min, divide by 60 and write the fraction in lowest terms 120 sec= 120 ÷ 60 = 2 min. b.) 4 hr = 240 min You are converting from a larger unit to a smaller unit (an hour is larger than a minute), so multiply. Because 1 hr = 60 min, multiply by 60. 4 hr = 4 * 60 = 240 min.
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.