## Intermediate Algebra for College Students (7th Edition)

$d = \sqrt\frac{sl}{kw}$
$s = \frac{kwd^2}{l}$, solve for $d$. $sl=kwd^2$ Divide the equation by $kw$ to isolate $d^2$. $\frac{sl}{kw} = d^2$ $d = \sqrt\frac{sl}{kw}$