<PRE><B>Question 1131754</B>
x grams of mix A
y grams of mix B

20 grams protein wanted


{{{0.20x+0.10y=p}}}, for grams of PROTEIN



{{{0.2x+0.1y=20}}}, good equation to use.


Better:
{{{2x+y=200}}}
{{{y=200-2x}}}

{{{highlight(y=-2x+200)}}}
Note, you must use only from quadrant 1.


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