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21 August, 10:43

Y varies directly with x. If x = 4 when y equals 26 find x when y = 65

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  1. 21 August, 12:00
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    Y varies directly with x.

    ⇒ y = ky where k is a constant.

    Given that x = 4 when y - 26,

    26 = 4k

    k = 6.5

    Therefore

    ⇒ y = 6.5x

    When y = 65,

    65 = 6.5x

    x = 10

    Answer: x = 10
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