Question 70588
N+D=50 
N=50-D
5N+10D=430
5(50-D)+10D=430
250-5D+10D=430
5D=430-250
5D=180
D=180/5
D=36 NUMBER OF DIMES.
N+36=50
N=50-36
N=14 NUMBER OF NICKLES.
PROOF
5*14+10*36=430
70+360=430
430=430