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9 April, 00:45

Find an equation of variation where y varies directly as x and y = 2 when x = 10, find y when x = - 25.

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  1. 9 April, 03:40
    0
    y = ⅕x; - 5

    Step-by-step explanation:

    y = kx

    k = y/x Divided both sides by x

    k = 2/10

    k = ⅕

    y = ⅕x

    The equation of variation is y = ⅕x.

    If x = - 25,

    y = ⅕ (-25) = - 5
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