Question 1165757
N+D+Q=19
.05N+.10D+.25Q=2.35
but D=N+2
so .05N+.10(N+2)+.25.Q=2.35
.05N+.10N+.20+.25Q=2.35
.15N+.25Q=2.15
Q=19-(2N+2)
so .15N+.25(19-2N-2)=2.15
.15N+4.25-.50N=2.15
-.35N=-2.10
N=6 nickels (0.30)
D=8 (0.80)
Q=5 (1.25)