Answer
14 cents per minute for the situation in exercise 39 and 7 cents per minute for the situation in exercise 40.
Work Step by Step
Exercise 39
69.95$\div$510 minutes=0.14 per minute
Exercise 40
69.95$\div$990 minutes= 0.07 per minute
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 5 - Ratio and Proportion - 5.2 Rates - 5.2 Exercises - Page 346: 41
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