SOLUTION: An airliner's average speed is 3 1/2 times the average speed of a private plane. Two hours after traveling in the same direction, they are 580 miles apart. What is the average spee
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Question 904548: An airliner's average speed is 3 1/2 times the average speed of a private plane. Two hours after traveling in the same direction, they are 580 miles apart. What is the average speed of each plane? Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! x the speed of the private plane
D =rt
7r - 2r = 580mi
5r = 580mi
r = 116mph, the speed of the private plane. Airliner 406mph
And...checking
812mi - 232mi = 580mi
