SOLUTION: A plane leaves Chicago headed for Los Angeles at 540 mph. One hour later, a second plane leaves Los Angeles headed for Chicago at 660 mph. If the air route from Chicago to Los An

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Question 78636: A plane leaves Chicago headed for Los Angeles at 540 mph. One hour later, a second plane leaves Los Angeles headed for Chicago at 660 mph. If the air route from Chicago to Los Angeles is 1800 miles, how long will it take for the first plane to pass the second plane? How far from Chicago will they be at that time?
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
540x+660(x-1)=1800
540x+660x-660=1800
1200x=1800+660
1200x=2460
x=2460/1200
x=2.05 hours after the first place left Chicago the two planes will meet.
proof
540*2.05+660(2.05-1)=1800
1107+660(1.05)=1800
1107+693=1800
1800=1800