Question 140141
"a total of one hundred forty-one pennies,nickels and quarters" __ 141=p+n+q


"She has a total of $15.17" __ 1p+5n+25q=1517


"fifteen more quarters than pennies" __ q-15=p


"fifteen fewer quarters than nickels" __ q+15=n


substituting __ 141=(q-15)+n+q __ 156=2q+n


substituting __ 156=2q+(q+15) __ 141=3q __ 47=q


substituting __ 47+15=n __ 62=n


substituting __ 47-15=p __ 32=p