Question 1182418
x of pepper cheddar
y of pennsylv jack
{{{system(x+y=5,18x+8y=11*5)}}}


Use y in terms of x.
{{{y=5-x}}}


{{{highlight_green(18x+8(5-x)=55)}}}-------solve this for x, and then find the value for y  (or just evaluate {{{5-x}}}).