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7 August, 10:50

Y is directly proportional to x, and y=10 when x=15. Write a direct proportion equation that relates x and y

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  1. 7 August, 12:07
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    y=kx

    10=k15

    rearrange the eqn, make k as a subject

    k=10/15

    k=2/3

    Therefore, the answers

    y=2/3x
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