Question 214146
Q=N-13
.25Q+.05N=15.65
.25(N-13)+.05N=15.65
.25N-3.25+.05N=15.65
.30N=15.65+3.25
.30N=18.90
N=18.90/.30
N=63 NICKELS.
Q=63-13=50 QUARTERS.
PROOF:
.25*50+.05*63=15.65
12.50+3.15=15.6515.65=15.65