8th Edition

ISBN: 9781305104174

Author: David B. Johnson, Thomas A. Mowry

Publisher: Cengage Learning

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Textbook Question

Chapter 4.2, Problem 24E

Sully drove from Atlanta, Georgia, to Birmingham, Alabama, a distance of 150 miles, at a mean speed of 50 miles per hour. On his return trip, the traffic was much lighter, and his mean speed was 60 miles per hour. Find Sully's mean speed for the round trip.

HINT: Divide the total distance by the total time.

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Chapter 4.2, Problem 23E

Chapter 4.2, Problem 25E

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Solution Summary: The author explains how Sully's mean speed for the round trip is 54.55 miles per hour. The formula to calculate the time is given as t=dv.

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