if x varies inversely as y^2 and x=3 when y=6 find x when y=3

Mathematics
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if x varies inversely as y^2 and x=3 when y=6 find x when y=3

Sep 13th, 2015

Thank you for the opportunity to help you with your question!

x varies inversely as y^2 

x=k/y^2                 k is constant of proportionality.


x=3 when y=6

3=k/36

k=108

x=108/y^2

when y=3

x=108/9

x=12

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 13th, 2015

Thank you so much !

Sep 13th, 2015

one more if you don't mind ! 

The weight of a liquid varies directly as its volume V. If the weight of the liquid is in a cubical container 4cm on a side is 128g, find the weight of the liquid in a cubical container 3cm on a side.

Sep 13th, 2015

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