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14 November, 02:07

Suppose that y varies directly with x and y=3 when x=9. What is y when x=18

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Answers (2)
  1. 14 November, 02:32
    0
    Answer: 6

    hope it's right
  2. 14 November, 02:42
    0
    6

    Step-by-step explanation:

    y varies directly with x means:

    y = kx

    Given that y = 3 when x = 9:

    3 = 9k

    k = 1/3

    Therefore:

    y = 1/3 x

    When x = 18:

    y = 1/3 (18)

    y = 6
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