SOLUTION: A sales executive travelled 72 miles by car and then an additional 840 miles by plane. the rate of the plane was five times greater than the rate of the car. The total time of the
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Question 1056950: A sales executive travelled 72 miles by car and then an additional 840 miles by plane. the rate of the plane was five times greater than the rate of the car. The total time of the trip was 5 hours . Find the rate if the car? Answer by jorel555(1290) (Show Source):
You can put this solution on YOUR website! Let r be the rate of the car; making the speed of the plane to be 5r. So:
72/r+840/5r=5
360+840=25r
r=48
5r=240
The car went 48 mph; the plane went 240 mph. ☺☺☺☺
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