# I need HELP FAST!!!

• Jul 20th 2006, 07:33 AM
Brooke
I need HELP FAST!!!
questions are on attachment!
• Jul 20th 2006, 08:22 AM
Jameson
#1) Using the given info, $\displaystyle y=kz$ and $\displaystyle y=\frac{k}{\sqrt{r}}$ for some constant k. The question said that the constant of proportionality is the same for both and that this value is 10. Thus $\displaystyle y=10z$ and $\displaystyle y=\frac{10}{\sqrt{r}}$. You can solve each question using basic algebra from here.
• Jul 20th 2006, 08:49 AM
CaptainBlack
Quote:

Originally Posted by Jameson
#1) Using the given info, $\displaystyle y=kz$ and $\displaystyle y=\frac{k}{\sqrt{r}}$ for some constant k. The question said that the constant of proportionality is the same for both and that this value is 10. Thus $\displaystyle y=10z$ and $\displaystyle y=\frac{10}{\sqrt{r}}$. You can solve each question using basic algebra from here.

I think the question is trying to say:

$\displaystyle y=k\frac{z}{\sqrt{r}}$

and that $\displaystyle k=10$.

RonL