SOLUTION: If y varies directly as x and inversely as the square of z and y=6 when x=64 and z =8, how do you find y when x = 21 and z=52?

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Question 1117598: If y varies directly as x and inversely as the square of z and y=6 when x=64 and z =8, how do you find y when x = 21 and z=52?
Found 2 solutions by josgarithmetic, solver91311:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
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If y varies directly as x and inversely as the square of z ,...
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y=kx%2Fz%5E2

The rest is just arithmetic.

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!





Therefore and



Just plug in 21 for and 52 for and do the arithmetic.

John

My calculator said it, I believe it, that settles it