SOLUTION: the 4200 km trip from new york to sanfransico takes 7 h flying against the wind but only 6h returning find the speed of the plane in stil air and the wind speed. Please show step

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Question 703543: the 4200 km trip from new york to sanfransico takes 7 h flying against the wind but only 6h returning find the speed of the plane in stil air and the wind speed. Please show steps. thank you
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
the 4200 km trip from new york to sanfransico takes 7 h flying against the wind but only 6h returning find the speed of the plane in stil air and the wind speed.
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Use d = r*t
--> r = d/t to find the 2 groundspeeds
The plane's airspeed is the average of the 2 groundspeeds.
The windspeed is the difference between airspeed and groundspeed.