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Suppose that x and y vary inversely and that y=1/6 when x = 3. Write a function that models the inverse variation and find y when x = 10.

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  1. y = C/x
    Solve for C with the given information.

    1/6 = C/3
    C = 1/2
    y = 1/(2x)
    If x = 10, y = 1/20

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