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intermediate algebra

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Rowing. Abby rows 10km. upstream and 10km. back in a total time of three hours. The speed of the river is 5km./h. Find Abby's speed in still water.

  • intermediate algebra -

    I just answered a very similar question here:

    http://www.jiskha.com/display.cgi?id=1312332711

    Study the solution and see if you can apply it to your question.

  • intermediate algebra -

    Also I just noticed that the same question was answered here:
    http://www.jiskha.com/display.cgi?id=1312075836

    All you have to do is solve the equation at the end.

  • intermediate algebra -

    can you please help find the solution to this equation. Your help would be greatly appreciated

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