Explanation:
a.) So he has 13 coins and those coins are nickels and quarters. If we let n be nickels and q be quarters
n + q = 13 because the total number of quarters plus nickels is 13
The coins have a total value of $2.05
Nickels are 0.05 cents and quarters are 0.25 cents, which means
0.05n + 0.25q = $2.05
Making your system of equations
