SOLUTION: A plane can travel 1,015 miles in 7 hours against the wind. Traveling with the same wind, the plane can travel 820 miles in 4 hours. How fast can the plane travel in still air and
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Question 1105239: A plane can travel 1,015 miles in 7 hours against the wind. Traveling with the same wind, the plane can travel 820 miles in 4 hours. How fast can the plane travel in still air and how fast is the wind current?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the speed in mi/hr of the plane in still air
Let = the speed in mi/hr of the wind
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Add the equations
and
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The speed of the plane in still air is 175 mi/hr
The speed of the wind is 30 mi/hr
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