Question 737512

.05N+.10D=1.05
N+3=4D
N=4D-3
.05(4D-3)+.10D=1.05
.20D-.15+.10D=1.05
.30D=1.05+15
.30D=1.20
D=1.20/.30
D=4 NUMBER OF DIMES.
N+3=4*4
N+3=16
N=16-3
N=13 NUMBER OF NICKLES.
PROOF:
.05*13+.10*4=1.05
.65+.40=1.05
1.05=1.05