Question 53648
44=2x+q & 4.37=.01x+.10x+.25q or q=44-2x or 4.37=.01x+.10x+.25(44-2x) or

4.37=.0x+.10x+11.00-.50x or 4.37-11.00=.01x+.10x-.50x or -6.63=-.39x or 

6.63/.39=x or x=17 thus there are 17 pennies, 17 dimes & 10 quarters

proof 17+17=10=44 & .01*17+.10*17+.25*10=4.37 .17+1.70+2.50=4.37 or 4.37=4.37