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25 January, 02:01

The value of y varies directly with x. When y=80, x=1/2. What is the value of y when x is 2 1/4?

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  1. 25 January, 02:06
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    Using the formula y = kx

    80 =.5k

    k = 160

    y = 160*2.25

    y = 360
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