Question

I need help on question 76

Answer 1

p= pennies n=nickels

p+n=131
0.01p+0.05n=3.43

p=131-n
0.01(131-n)+0.05n=3.43
1.31-0.01n+0.05n=3.43
0.04n=2.12
n=53

131-53=78=p

53 nickels and 78 pennies