Question 647828
DIMES=5X
NICKELS=X
5X(.10)+X*.05=4.40

.5X+.05X=4.40
.55X=4.40
X=4.40/.55
X=8 NICKELS
5*8=40 DIMES.
PROOF:
5*8(.10)+.05*8=4.40
40*.10+.04=4.40
4.00+.40=4.40
4.40=4.40