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Suppose that y varies jointly with w and x and inversely with z and y = 320 when w = 6, x = 20, and z = 3.
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Suppose that y varies jointly with w and x and inversely with z and y = 320 when w = 6, x = 20, and z = 3.

User Mhaller
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3 votes
I suppose we are to determine the proportionality constant of the variation. The equation for this proportionality is,
y = kwx / z
Substituting the known values,
320 = k(6)(20)/3
The value of k from the equation is 8.
User Josh Segall
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7.2k points
2 votes

Answer:

y=8wx/z

Explanation:

User Baris Atamer
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7.2k points
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