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Find the constant of proportionality for the following situation: "y is jointly proportional to x and z and inversely proportional to w."
w=2, x=5, y=4, and z=9
So i think the equation is y=xz/w
But what is the constant of proportionalit supposed to mean?

  • Calc -

    You're almost right.

    y = kxz/w, where k is the constant of proportionality.

    Plugging in your values,

    4 = k*5*9/2
    8 = 45k
    k = 8/45

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