SOLUTION: A plane can fly 720 miles in the same time as it takes a car to go 200 miles. If the car travels 130 mph slower than the plane, find the speed of the plane

Question 909097: A plane can fly 720 miles in the same time as it takes a car to go 200 miles. If the car travels 130 mph slower than the plane, find the speed of the plane
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A plane can fly 720 miles in the same time as it takes a car to go 200 miles. If the car travels 130 mph slower than the plane, find the speed of the plane.
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Plane rate = 720/t mph
Car rate = 200/t mph
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Equation::
plane rate - car rate = 120 mph
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720/t - 200/t = 120 mph
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720 - 200 = 120t
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120t = 500
t = 4.16666...
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Ans: plane speed = 720/4.16666 = 172.8 mph
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Cheers,
Stan H.
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