Variation (Precalculus)

danimalswim

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Oct 10, 2012
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Suppose that x varies directly as the square of y and inversely as z and x=12 when y=6 and z=4. What is x when y=4 and z=16?
I think I got 48--I'm not sure.
 
Suppose that x varies directly as the square of y and inversely as z and x=12 when y=6 and z=4. What is x when y=4 and z=16?
I think I got 48--I'm not sure.
If you are not sure whether you got 48 or not, it is impossible to tell you whether you are right or not. If you did get 48, you are wrong. It is also impossible to tell where you went wrong because you did not show your work. We cannot help correct your errors if we do not know what they were. Showing your work is crucial.
 
Suppose that x varies directly as the square of y and inversely as z and x=12 when y=6 and z=4. What is x when y=4 and z=16?
I think I got 48--I'm not sure.
Do you know what "x varies directly as the square of y and inversely as z" means?
 
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