SOLUTION: Two planes, which are 2320 miles apart, fly toward each other. Their speeds differ by 80 mph. If they pass each other in 4 hours, what is the speed of each?

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Question 908555: Two planes, which are 2320 miles apart, fly toward each other. Their speeds differ by 80 mph. If they pass each other in 4 hours, what is the speed of each?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
d=(r+R)*t
2320=(2x+80)*4
2320/4=2x+80
580=2x+80
500=2x
x=250
x+80=250+80
x+80=330
check
2320=(2*250+80)*4
2320=(500+80)*4
2320=580*4
2320=2320
ok