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Suppose x is directly proportional to y, but inversely proportional to z. If x = 3 when y = 6 and z = 4, then what is z when y = 3?

 Mar 26, 2019
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\(x = c y\\ x = \dfrac d z\)

 

\(x=3, y=3 \Rightarrow c = 2\\ x = 3, z=4 \Rightarrow d = 12\)

 

\(y=3 \Rightarrow x = 6 \Rightarrow z=2\)

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 Mar 26, 2019

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