SOLUTION: An airplane flying with the wind can cover 600 miles in two hours. The return trip against the wind takes two and one-half hours. What is the speed of the plane in still air?

Question 312343: An airplane flying with the wind can cover 600 miles in two hours. The return trip against the wind takes two and one-half hours. What is the speed of the plane in still air?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Rate*Time=Distance
-wind speed
-plane speed
.
.
.
1.
2.
From eq. 1,

From eq. 2,

Add them to eliminate W,

Then from eq. 1,

The speed of the plane in still air is 270 mph.
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