SOLUTION: A plane is travleing 480 mph with the wind, and 400 mph against the wind. Find the speed of the plane in still air.
I have no idea how to solve this problem.
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Question 506556: A plane is travleing 480 mph with the wind, and 400 mph against the wind. Find the speed of the plane in still air.
I have no idea how to solve this problem. Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! plane speed in still air = x
wind speed = y
x+y=440-----------1
against wind
x-y = 400---------2
add (1) & (2)
2x=880
/2
x= 440 mph
