SOLUTION: Each of two cars, whose average rates are in the ratio of 4:5, travels the distance of 160 miles. If the fast car travels 1/2 an hour less than the slow car, find the average rate
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Question 1066151: Each of two cars, whose average rates are in the ratio of 4:5, travels the distance of 160 miles. If the fast car travels 1/2 an hour less than the slow car, find the average rate of each car. Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let their speeds = and
Let the time for the slow car = = the time for the fast car
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Slow car:
(1)
(2)
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(1)
(1)
--------------------------
(2)
(2)
(2)
(2)
(2)
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and
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The slow car's speed is 64 mi/hr
The fast car's speed is 80 mi/hr
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check:
(1)
(1)
(1)
and
(2)
(2)
(2)
(2)
(2)
OK