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25 July, 17:53

Assessment items Item 13 The variables x and y vary directly. Use the values to find the constant of proportionality, k. Then write an equation that relates x and y. y=72; x=3 k = y=

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  1. 25 July, 21:02
    0
    A proportion can be written as

    y = kx

    Substituting the given information, we can find k.

    72 = k*3

    72/3 = k = 24

    You have ...

    k = 24

    y = 24x
  2. 25 July, 21:50
    0
    To find the constant of proportionality you gotta divide the x by the y to get your answer
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