<PRE><B>Question 337320</B>
Two planes left an airport at noon. one flew east at a certain speed and the other flew west at twice the speed. The planes were 2700 mi apart in 3h. How fast was each plane flying?
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East flight DATA:
rate = x mph ; time = 3 hr ; distance = 3x miles
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West flight DATA:
rate = 2x mph ; time = 3 hr; distance = 6x miles
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Equation:
distance + distance = 2700 miles
3x + 6x = 2700 miles
9x = 2700
x = 300 mph
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East flight rate = x = 300 mph
West flight rate = 2x = 600 mph
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Cheers,
stan H.</PRE>