Question 1151891
<pre>
INGRED PRICE    QTY         COST

$14.00          y           14y

$3.00           x            3x

$4.50          2x            9x

----------------------------------

TOTAL         400         12x+14y
              gallons      dollars
</pre>

{{{system(3x+y=400,(12x+14y)/400=8)}}}
Simplify and solve this system of equations.