SOLUTION: A airplane had been flying for 1 hour when a change of wind current doubled the rate of the plane. If the entire trip of 384 km took 2.5 hours, how far did the plane travel in the

Question 1056600: A airplane had been flying for 1 hour when a change of wind current doubled the rate of the plane. If the entire trip of 384 km took 2.5 hours, how far did the plane travel in the first hour?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A airplane had been flying for 1 hour when a change of wind current doubled the rate of the plane. If the entire trip of 384 km took 2.5 hours, how far did the plane travel in the first hour?
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1st leg DATA:
time = 1 hr ; rate = x mph ; distance = x miles
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2nd leg DATA:
time = 1.5 hr ; rate = 2x mph ; distance = 1.5*2x = 3x miles
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Equation:
x + 3x = 384 km
4x = 384
x = 98 km (distance traveled in 1st hour)
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Cheers,
Stan H.
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