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If y is directly proportional to x and when y = 35, x = 140, what is the value of x when y = 70?

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  1. Today, 01:53
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    Answer: 280 = x

    Step-by-step explanation: Okay you are using this equation! y = kx But you must rearrange it!

    When rearranged you get y/x = k

    Plug in x and y!

    y/x = k

    35/140 = k

    0.25 = k

    Now find the value of x.

    You use this formula now, y/k = x

    Plug in k from the last problem and y = 70

    y/k = x

    70/0.25 = x

    280 = x
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