SOLUTION: A jet takes the same time to travel 2500 km with the wind as it does to travel 1900 km against the wind. If its speed relative to the air is 450 km/hr, what is the speed of the win
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Question 285920: A jet takes the same time to travel 2500 km with the wind as it does to travel 1900 km against the wind. If its speed relative to the air is 450 km/hr, what is the speed of the wind? Answer by richwmiller(17219) (Show Source):
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what letters should we use for jet and wind?
(j+w)*t=2500
(j-w)*t=1900
Knock yourself out.
j=450
we could solve both equations for t and set them equal.
(j+w)*t=2500
(j-w)*t=1900
t=2500/(450+w)
t=1900/(450-w)
2500/(450+w)=1900/(450-w)
w=675/11= abt 61.36
