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First we decide on decision
variables. Let us label the foods 1, 2, ...6, and let
represent the number of servings of food *i* in the diet.
Our objective is to minimize cost, which can be written

We have constraints for energy, protein, calcuim, and for each
serving/day limit. This gives the formulation:

*Michael A. Trick *

Mon Aug 24 16:30:59 EDT 1998