Asked by Dana

A helicopter can fly 120 mph in still air. When flying to a town 700 miles away and returning the helicopter has to fly with a tailwind of x mph when going to the town and with a head wind of x mph when returning. If the return flight takes 2 hours more than the flight to the town, find the wind speed. Please show your work

Answers

Answered by Steve
since time = distance/speed,

700/(120-x) = 720/(120+x)+2
x = 20

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