Question 1086217
I'm using x in place of A and y in place of B,
{{{3x+4y<=100}}}
{{{280x+180y>=5200}}}
{{{y>=4}}}
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*[illustration 9x6.JPG].
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So then graphing the constraints shows the feasible region and the vertices of the region A,B, and C.
Check the cost and nutrition level for each vertex.
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*[illustration 9x5.JPG].
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So it looks like,
{{{A=x=28}}} and {{{B=y=4}}} provides the best nutrition level of 8560 and stays within the cost limit.