Question 311542
n=2p-4
d=n+13 or d=(2p-4+13)
p+n+d=65
p+(2p-4)+(2p-4+13)=65
5p-4-4+13=65
5p=65+4+4-13
5p=60
p=60/5
p=12 pennies.
n=2*12-4
n=24-4=20 nickles.
d=20+13=33 dimes.
Proof:
12+20+33=65
65=65