SOLUTION: two planes start from the same point and fly in opposite directions. The first plane is flying 50 mph slower than the second plane. In 2.5 h, the planes are 1400 mi apart. Find the

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Question 906209: two planes start from the same point and fly in opposite directions. The first plane is flying 50 mph slower than the second plane. In 2.5 h, the planes are 1400 mi apart. Find the rate of each plane.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
d=r*t+R*t
d=t*(r+R)
1400=2.5(x+x+50)
1400=2.5(2x+50)
1400=5x+125
1275=5x
x=255
x+50=305