Question
A train travels from city A to city B and then to city C. The distance from A to B is 150 miles and the
A train travels from city A to city B and then to city C. The distance from A to B is 150 miles and the distance from B to C is 90 miles. The average speed from A to B was 75 miles per hour, and the average speed from B to C was 60 mph. What was the average speed from A to C (that is for the entire trip) in miles per hour?
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Calculus Single Variable
Authors: Deborah Hughes Hallett, Andrew M Gleason, William G McCallum, David O Lomen, David Lovelock, Jeff Tecosky Feldman, Thomas W Tucker, Daniel E Flath, Jo
5th Edition
0470461594, 9780470461594
