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December 19, 2014

December 19, 2014

Posted by **michael** on Saturday, March 22, 2008 at 4:16pm.

- algebra -
**Reiny**, Saturday, March 22, 2008 at 4:38pmx is inversely proportional to y ---> x = k/y

if x=60, then y=0.5

60 = k/.05

k = 3

so x = 3/y or xy = 3

when y = 12

12x = 3

x = 3/12 = 1/4

I did this very systematically, you can shorten it up a bit

- algebra -
**michael**, Saturday, March 22, 2008 at 6:36pmmy choices are 0.4, 25, 2.5, or 360.

so, is the answer 0.4 or 25?

- algebra -

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