Use the two steps for solving a linear programming problem given in the box on page 606, to solve the problems in Exercises 17-23,
A large institution is preparing lunch menus containing foods A and B. The specifications for the two foods are given in the following table:
Food A | Units, of Fat per Ounce 1 | Units of Carbohydrates per Ounce 2 | Units or Protein per Ounce 1 |
B | 1 | 1 | 1 |
Each lunch must provide at least 6 units of fat per serving, no more than 7 units or protein, and at least 10 units of carbohydrates The institution can purchase fond A for $0.12 per ounce and food B for $0 08 per ounce. How many ounces of each food should a serving contain to meet the dietary requirements at the least cost?
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