SOLUTION: A certain aircraft can fly 1280 miles with the wind in 4 hours and travel the same distance against the wind in 8 hours. What is the speed of the wind?
Can you please show me st
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Question 540651: A certain aircraft can fly 1280 miles with the wind in 4 hours and travel the same distance against the wind in 8 hours. What is the speed of the wind?
Can you please show me step by step so i know how to do it? thanks
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
r = d / t
a + w = 1280 / 4 ___ a + w = 320
a - w = 1280 / 8 ___ a - w = 160
adding the equations eliminates w ___ 2a = 480 ___ a = 240
substituting ___ (240) + w = 320 ___ w = 80
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