MATH

Travel Time

A company president flew 680 miles one way in the corporate jet but returned in a smaller plane that could fly only half as fast. If the total travel time was 6 hours, find the speeds of the planes.

how would I set up this problem?

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  1. low speed = s
    then high speed = 2s
    time at low speed = 680/s
    time at high speed = 680/2s = 340/s
    so
    680/s + 340/s = 6
    1020 = 6 s
    s = 170
    2s =

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  2. thank you

    would you take the 170 and multiply it by 2 to get the answer?

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  3. yes

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