B. 28C. 72A car travels from one city to another at9940 miles per hour. On the return trip, therate of the car is 60 miles per hour. Whatis the average rate for the entire trip?A. 48 mph.B. 50 mph.C. 55 mph.D. 58 mph.

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Answered: 66. A car travels from one city to…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

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66. A car travels from one city to another at 40 miles per hour. On the return trip, the rate of the car is 60 miles per hour. What is the average rate for the entire trip? A. 48 mph. B. 50 mph. C. 55 mph. D. 58 mph.