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model formulation

# model formulation - Forthisweek,.WhenIsay...

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For this week, I would like to repeat the hints from a previous week on model formulation. When I say  model formulation, here is the model formulation for Exercise 1 from Chapter 2  (a) x1 = # cakes x2 = # loaves of bread maximize Z = \$10x1 + 6x2 subject to: 3x1 + 8x2 <= 20 cups of flour 45x1 + 30x2 <= 180 minutes x1, x2 >= 0 So you need to identify what the variables x1, x2 , etc. represent; also the Z function that you are going to  maximize or minimize; the constraints that follow the "subject to Also every LP problem is either a maximization or a minimization problem. Not all problems are going to  tell you whether you should maximize or minimize. Sometimes you have to figure that out for yourself.  Typically, if you are talking profit, you are maximizing. If you are talking cost, you minimize.
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