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8 February, 19:13

If y varies directly as x and y=8 when x=2, find x=6.

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Answers (2)
  1. 8 February, 21:30
    0
    Step-by-step explanation:

    X=ky

    2=8k

    K=4

    X=4y

    6=4y

    Y=1. 5
  2. 8 February, 22:37
    0
    Step-by-step explanation:

    y varies directly as x

    y ∞ x

    y = kx

    and y=8 when x=2

    8 = 2 (k)

    8 = 2k

    k = 8/2

    k = 4

    y = 4x

    find y when x=6

    y = 4 (6)

    y = 24
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