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13 September, 00:15

In a certain function, y varies directly with x. If y = 6 when x = 8, find x when y = 9.

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  1. 13 September, 00:31
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    Y=6, x=8

    6/8=0.75

    0.75x=y

    we can use this solve for x when y=9

    0.75x=9

    divided both sides by 0.75

    x=12

    so when y=9, x=12
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