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16 May, 16:08

Y is directly proportional to x, and y=216 when x=2. find y when x=7

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  1. 16 May, 18:16
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    2/216 = 7/x

    cross multiply

    (2) (x) = (216) (7)

    2x = 1512

    x = 1512/2

    x = 756 <==
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