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11 February, 23:12

The value of y varies directly with x, and y = - 10 when x = 40. Identify the value of y when x = - 5.

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  1. 12 February, 00:35
    0
    -10/40 = y / - 5

    cross multiply

    (40) (y) = (-5) (-10)

    40y = 50

    y = 50/40

    y = 5/4 <===
  2. 12 February, 01:11
    0
    The value of y when x is - 5 is (-10 * - 5) 40 = 1.25

    y=1.25
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