Question 108600
Q+D=24 OR D=24-Q
.25Q+.10(24-Q)=3.60
.25Q+2.4-.10Q=3.60
.15Q=3.60-2.40
.15Q=1.20
Q=1.20/.15
Q=8 ANSWER FOR THE NUMBER OF QUARTERS.
24-8=16 NUMBER OF DIMES.
PROOF
.25*8+.10*16=3.60
2.00+1.60=3.60
3.60=3.60