given that x varies inversely as the square of y, and x=12 when y=5.

[Brickette]

I have no idea what this question means and no idea where to begin.

 

[lev888]

I have no idea what this question means and no idea where to begin.View attachment 25112

Google can help you find the "varies inversely" formula. It involves a constant. Plug in the 2 given values to find the constant. This answers a. Then use the formula to answer b and c.

 

[skeeter]

x varies inversely as the square of y translates to ...

[MATH]x = \dfrac{k}{y^2}[/MATH]
where k is a constant.

continue ...

 

[Steven G]

Please watch this video as it covers just what you need.