SOLUTION: A car and a plane travel 50 miles and 180 miles during the same time. The difference between their speeds is 143 miles per hour. Find the speed of the airplane.
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-> SOLUTION: A car and a plane travel 50 miles and 180 miles during the same time. The difference between their speeds is 143 miles per hour. Find the speed of the airplane.
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Question 478842: A car and a plane travel 50 miles and 180 miles during the same time. The difference between their speeds is 143 miles per hour. Find the speed of the airplane. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! d = rt
50 = rt
180 = (r+143)t
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180 = rt + 143t
180 = 50 + 143t
t = 130/143 = 10/11 hours
r = d/t
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Car: 50/(10/11) = 55 mph
Plane: 180/(10/11) = 198 mph
