Incorrect. Let $\displaystyle{n}=\usepackage{cmbright}\Huge\$ the number of nickels and $\displaystyle{d}=\usepackage{cmbright}\Huge\$ the number of dimes. The information can be described by a system of equations: $\displaystyle{n}+{d}={80}\usepackage{cmbright}\Huge\$ and $\displaystyle{0.05}{n}+{0.10}{d}={5.00}\usepackage{cmbright}\Huge\$ . Graph each equation and find the point of intersection. This point of intersection represents the solution to the problem.