Jessie has some nickels, dimes, and quarters in her bank. The number of coins is 30. The expression $\displaystyle{0.05}{n}+{0.10}{d}+{0.25}{q}\usepackage{cmbright}\Huge\$ represents the value of the coins, which is $3.45. Jessie has five more nickels than she does quarters. How many of each coin does Jessie have?