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21 July, 08:20

Y varies directly to x. When y = 16, x = 4. Determine x when y = 36.

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Answers (2)
  1. 21 July, 08:52
    0
    x = 9

    Step-by-step explanation:

    Given y varies directly with x then the equation relating them is

    y = kx ← k is the constant of variation

    To find k use the given condition when y = 16, x = 4

    16 = 4k (divide both sides by 4)

    k = 4

    y = 4x ← equation of variation

    When y = 36, then

    36 = 4x (divide both sides by 4)

    x = 9
  2. 21 July, 08:56
    0
    Answer: 9
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