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Math Help - Confusing mixed word problem

  1. #1
    Junior Member
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    Jan 2009
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    Post Confusing mixed word problem

    Evening forum I am having trouble with the below problem any feed back would be appreciated.

    Write the equation expressing the relationship between the variables, then use the given data to find the constant of variation.

    u varies directly as v and inversely as the square root of w. Given: u = 0.04 when v = 8 and w = 0.04.
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  2. #2
    MHF Contributor
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    Talking

    Quote Originally Posted by AlgebraicallyChallenged View Post
    u varies directly as v and inversely as the square root of w. Given: u = 0.04 when v = 8 and w = 0.04.
    To learn how to set up and solve "variation" exercises, try studying a few online lessons. As they will demonstrate, the general translation is:

    . . . . .y varies directly as x: y = kx
    . . . . .y varies inversely as x: y = k/x
    . . . . .y varies jointly as x and z: y = kxz

    Once you've studied some lessons and learned the basic terms and techniques, please attempt the exercise.

    Start by translating the English statement into the proper algebraic equation. Then plug the given values in for the given variables, and solve for the variation constant "k".

    "The answer" is the equation you started with, but with the value of "k" listed, rather than just the letter.

    Have fun!
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