SOLUTION: At max speed an airplane travels 1680 miles on 5 hours. Flying with the wind it travels the same distance in 4 hours. What is the speed of the plane without the wind, and what is t

Question 931788: At max speed an airplane travels 1680 miles on 5 hours. Flying with the wind it travels the same distance in 4 hours. What is the speed of the plane without the wind, and what is the wind speed.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = speed of airplane in still air = 1680/5 = 336 mph
y = speed of wind
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s = d/t
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with the wind:
x + y = 1680/4
336 + y = 1680/4
y = 1680/4 - 336
y = 84
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answer:
x = speed of airplane in still air 336 mph
y = speed of wind = 84 mph
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