SOLUTION: Two planes leave an airport at the same time and travel in opposite directions. If one plane averages 440 miles per hour and the other plane averages 560 miles per hour, then in ho
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Question 1125924: Two planes leave an airport at the same time and travel in opposite directions. If one plane averages 440 miles per hour and the other plane averages 560 miles per hour, then in how long will the planes be 2500 miles apart? Answer by ikleyn(52795) (Show Source):
