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1 December, 21:49

Y varies directly with x, and y = 15 when x = 3. What is the value of x when y = 4?

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  1. 1 December, 21:53
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    3/15 = x/4

    cross multiply

    15x = (4) (3)

    15x = 12

    x = 12/15

    x = 4/5 <==
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