Question

Suppose that w varies directly as z2 and inversely as xy. When w = 10, x = 15, y = 2, and z = 5. Find z when w = 2, x = 8, and y = 27

Answer 1

\[w = k z^{2}/(xy),\]for some k > 0. Must determine numerical value for k, using the data

Answer 2

I must make a quick run to the store and will be back in about fifteen minutes.