Question 1190239
pennies nickels dimes quarters
p, n, d, q


{{{system(q-p=1,n-d=3,q-n=10,q-d=13,and,p+5n+10d+25q=1418)}}}



Notice the first four equations, about the coin counts, have q in them.

{{{system(p=q-1,n-d=3,n=q-10,d=q-13)}}}


substitute most of those into the money equation:
{{{highlight_green((q-1)+5(q-10)+10(q-13)+25q=1418)}}}----simplify and solve for q.

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