Question

Minimize z=20x1+20x2 subjected to
$x1 \geqslant 0 \\ x2 \geqslant 0 \\ x1 + 2x2 \geqslant 8 \\ 3x1 + 2x2 \geqslant 15 \\ 5x1 + 2x2 \geqslant 20$
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Answer 1

Answer:

pls see the attachment