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math

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a small plane flying into the wind takes 3 hrs 20 min to complete a flight of 960 km. Flying with the wind the same plane takes 2 h 30 min to make the trip.what is the speed of the plane? what is the speed of the wind?

  • math - ,

    w=speed of wind
    a=speed of airplane
    Use speed*time = distance
    (a-w)*(10/3)=960 ...(1)
    (a+2)*(5/2)=960 ...(2)

    Solve for a and w.

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