*If wx=z....

by **Torquil** Thu Dec 11, 2008 5:26 pm

Please help!

If wx=y, what is the value of xy?

1) wx^2=16
2)y=4

(answer is A)

Thanks!

by **Guest** Thu Dec 11, 2008 10:40 pm

Isn't this a verbal posting section?

Anyway, wx^2 can be written wxx = (wx)(x) = (y)(x) or simply xy. So xy = 16. A is sufficient.

by **RonPurewal** Mon Dec 15, 2008 7:38 am

i have moved this problem to the correct section.

original poster: please post an attribution for this problem (i.e., the source where you got it); otherwise we'll have to kill the thread.
thanks.