SOLUTION: y varies directly as x and inversely as the square of z. y=12 when x=64 and z=4. Find y when x=63 and z=3

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Question 957740: y varies directly as x and inversely as the square of z. y=12 when x=64 and z=4. Find y when x=63 and z=3
Answer by lwsshak3(11628) About Me  (Show Source):
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y varies directly as x and inversely as the square of z. y=12 when x=64 and z=4. Find y when x=63 and z=3
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y=12*63/64*(4/3)^2=21