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anonymous
 5 years ago
With a tailwind, a jet flew 2000 miles in 4 hours. The jet's return trip against the same wind required 5 hours. Find the jet's speed and the wind speed.
anonymous
 5 years ago
With a tailwind, a jet flew 2000 miles in 4 hours. The jet's return trip against the same wind required 5 hours. Find the jet's speed and the wind speed.

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(jetspeed + windspeed) * 4 = 2000 = (jetspeed  windspeed)*5

JamesJ
 5 years ago
Best ResponseYou've already chosen the best response.0Suppose that with no wind the jet's speed is v. Let the wind have speed w. For the first leg of the trip, the speed of the jet is v + w because the wind is assisting the jet. Now, speed = (distance)/(time) hence v + w = 2000/4 = 500 For the return trip, the speed of the jet is v  w because the wind is working against the jet. Hence v  w = 2000/5 = 400 Therefore you have two simultaneous equations: v + w = 500 v  w = 400 Now solve them to find v and w.
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