SOLUTION: A pilot is testing a new experimental craft. The cruising speed is classified information. In a test the jet traveled 5,400 miles. The pilot revealed that if he had increased his s

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Question 906625: A pilot is testing a new experimental craft. The cruising speed is classified information. In a test the jet traveled 5,400 miles. The pilot revealed that if he had increased his speed 900 mph, the total trip would have taken 1 hour less. Determine the cruising speed of the jet.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
r*t=5400.
t=5400/r
(r+900)*(t-1)=5400
(r+900)*(5400/r-1)=5400
r = 1800, t = 3