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24 December, 19:29

Variable y varies directly with variable x, and y = 20 when x = 8.

Enter the constant of variation in lowest terms.

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  1. 24 December, 23:25
    0
    All you hav to do it plug in what you know

    y=20 and x=8

    20=8k

    divide both sides by 8

    20/8=8k/8

    and you get 5/2

    20/8=5/2

    so your answer is 5/2
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