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math

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A boat is rowed down a river a distance of 16 miles in 2 hours and it is rowed upstream the same distance in 8 hours. Let r represent the rate of the boat in still water in miles per hour, and let c represent the rate of the stream in miles per hour. Write the equation. What is the still water speed and rate of the stream?

  • math - ,

    still water speed of boat --- x mph
    speed of river current ---- y mph

    2(x+y) = 16
    x+y = 8

    8(x-y) = 16
    x-y = 2

    add them
    2x = 10
    x = 5, then y = 3

    state the conclusions.

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