Answered

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A certain aircraft can fly 1330 miles with the wind in 5 hours and travel
the same distance against the wind in 7 hours. What is the speed of the
wind?

Sagot :

Downwind DATA:
distance = 1330 ; time = 5 hrs ; rate = d/t = 1330/5 = 266 mph
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Upwind DATA:
distance = 1330 ; time = 7 hrs ; rate = d/t = 1330/7 = 190 mph
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Equations:
p + w = 266
P - w = 190
-------------
Subtract 2nd equ. from 1st to get:
2w = 76
w = 38 mph (speed of the wind)

Answer 38mph
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