SOLUTION: Two planes start from the same point and fly in opposite directions. The first plane is flying 30mi/h faster than the second plane. In 3.5 h the planes are 875 miles apart. Find th
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Question 1047795: Two planes start from the same point and fly in opposite directions. The first plane is flying 30mi/h faster than the second plane. In 3.5 h the planes are 875 miles apart. Find the rate of the faster plane.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
rt = D
(r + 30)(3.5hr) + r(3.5hr) = 875m
7r + 210 + 7r = 875*2
14r = 1750 - 210
14r = 1540
r = 110mph, slower
faster 140mph
AND
250(3.5) = 875 CHECKS!
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