Question 1154912
<pre>
BILL       VARIABLE BILL COUNT       DOLLARS
  1             x                      x
  5             y                     5y
 10             y+2                   10(y+2)
TOTAL          35                     144    
</pre>
{{{system(x+y+(y+2)=35,x+5y+(10y+20)=144)}}}


-


{{{system(x+2y=33,x+15y=124)}}}

{{{E2-E1}}}:

{{{13y=91}}}

{{{highlight(y=7)}}}------------- 7 of the $5 bills
-
{{{highlight(x=19)}}}------------ 19 of the $1 bills
-
{{{highlight(9)}}}-------------- 9 of the $10 bills