## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

We are asked to evaluate the given equation for $z=9$ and $y=15$. We can plug in directly to evaluate. $\frac{5z}{y}=\frac{5\times9}{15}=\frac{45}{15}=\frac{45\div15}{15\div15}=\frac{3}{1}=3$