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Presentation by Team 2

Presentation by Team 2.

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Presentation by Team 2

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  1. PresentationbyTeam 2

  2. U.S. Labs manufactures mechanical heart valves from the heart valves of pigs. Different heart operations require valves of different sizes. U.S. Labs purchases pig valves from three different suppliers. The cost and size mix of the valves purchased from each supplier are given in the Table below. Each month, U.S. Labs places one order with each supplier. At least 500 large, 300 medium, and 300 small valves must be purchased each month. Because of limited availability of pig valves, at most 500 valves per month can be purchased from each supplier. Formulate an LP that can be used to minimize the cost of acquiring the needed valves.

  3. Decision variables x 1, x 2 , x 3 - number of valves supplied by supplier 1, 2 , 3 respectively per month Objective function Minimizing cost-5x 1+4x 2+3x 3

  4. Constraints Constraint 1 • 40 x1 + 30 x 2 + 20 x 3 >=500 • 40 x1 + 35 x 2 + 20 x 3 >=500 • 20 x1 + 35 x 2 + 60 x 3 >=500 Constraint 2 x1 , x 2 , x 3 <=500

  5. Non- negativity Constraint • x1 , x 2 , x 3 >=0

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