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19 February, 12:36

Assume that y varies directly with x. If y = - 15 when x = - 5, find y when x = 3.

Write and solve a direct variation equation to find the answer.

y=

+1
Answers (1)
  1. 19 February, 15:15
    0
    Answer: Y = 9

    Step-by-step explanation:

    Y & X

    Y = KX

    K = Y / X = - 15 / - 5 = 3

    X = 3

    K = 3

    Y=?

    Y = KX = 3 x 3 = 9

    Therefore, when X = 3, Y = 9
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