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keekee23 · Feb 9, 2007, 05:31 PM

if Z varies inversely as w, and Z = 10 when w= .5 find Z when w= 8

Capuchin · Feb 10, 2007, 02:54 AM

Let's form an equation with a constant A

$Z \propto \frac{1}{w}$

therefore $Z = \frac{A}{w}$

Where A is a constant

Now you can use your values for w and Z to find A, then you can use A and the new w to find the new Z using the same formula above.

Good luck!

asterisk_man · Feb 11, 2007, 05:58 PM

I agree with capuchin and would like to applaud the use of $\propto$ . We're getting some major LaTeX practice around here lately!