SOLUTION: Use two equations in two variables to solve the problem.
The jet stream is a strong wind current that flows across the United States, as shown in the illustration below. Flying
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Question 762769: Use two equations in two variables to solve the problem.
The jet stream is a strong wind current that flows across the United States, as shown in the illustration below. Flying with the jet stream, a plane flew 2,520 miles in 4 hours. Against the same wind, the trip took 5 hours. Find the airspeed of the plane (the speed in still air).
mph
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Distance equals rate times time, so rate equals distance divided by time. The rate with the wind is 
The rate against the wind is 
, so
Solve for 
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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