Let the number of pennies be p and the number of nickels be n.
p + n = 22
p = 22 - n
The total value equation:
0.01p + 0.05n = 0.54
Substituting the value of p from the first equation:
0.01(22 - n) + 0.05n= 0.54
0.22 - 0.01n + 0.05n = 0.54
0.04n = 0.32
n = 8
p = 22 - 8 = 14
14 pennies and 8 nickels
