<PRE><B>Question 224094</B>
Let x = rate of the slower plane (First plane!)
x+25 = rate of the faster plane  (Second plane!)


The planes fly for 2 hours, where Distance = R*T

Distance between the planes = SUM of the distances.

R*T + R*T= 470 miles
2*x + 2*(x+25)=470
2x+2x + 50 = 470
4x+50=470
4x=420
x=105 mph  First plane
x+25= 105+25=130 mph  Second plane.


R^2


Dr. Robert J. Rapalje
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