Question 176439
.1x*.25+.05x=5.25
.025x+.05x=5.25
.075x=5.25
x=5.25/.075
x=70 number of nickels.
.1*70=7 number of quarters.
Proof:
7*.25+.05*70=5.25
1.75+3.50=5.25
5.25=5.25