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15 July, 11:32

If x varies directly as y, and x equals 6 when y equals 3, find X when y equals 4.

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Answers (2)
  1. 15 July, 13:55
    0
    If

    x=6 when y=3

    then

    x=8 when y=4

    so

    x=2*y
  2. 15 July, 15:25
    0
    Since they are directly proportional so the ratio between them is constant

    x/y = 6/3

    when y = 4, x/4 = 6/3, x = (6/3) * 4 = 8
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