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30 October, 14:45

Suppose y varies with x, and y=30 when x=3. What direct variation equation relates x and y?

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  1. 30 October, 14:58
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    Direct variation: y = kx.

    Here, 30 = k (3), so k = 10.

    Thus, the direct variation equation relating x and y is y = 10x.
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