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The Charm City Mining Company owns two mines, each of which produces three grades of ore— high, medium, and low. The company has a contract to supply a smelting company with at least 100 tons of high-grade ore, 110 tons of medium-grade ore, and 120 tons of low-grade ore. Each mine produces a certain amount of each type of ore during each hour that it operates. Mine 1 produces 6.2 tons of high-grade ore, 3.2 tons of medium-grade ore, and 4.5 tons of low grade ore per hour. Mine 2 produces 3.5, 4.1, and 8 tons, respectively, of high-, medium-, and low-grade ore per hour. It costs the company $350 per hour to operate mine 1, and it costs $250 per hour to operate mine 2. The company wants to determine the number of hours it needs to operate each mine so that its contractual obligations can be met at the lowest cost.
(a) Define the decision variables.
(b) Determine the objective function. What does it represent?
(c) Determine all the constraints. Briefly describe what each constraint represents.
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When a patient is sent to another hospital, the hospital has to put a staff with adequate skills to guarantee the patient's life, which costs the hospital $200 per patient sent
Finally, the CEO reminds you that this presentation is meant to be a how-to guide for the overall decision-making process that you will be using in your future assignments.
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Which of the following is considered a major process flow structure? ISO audits result in certifications that are done by first, second, or third parties. Which of the following result in the best certification of a firm?
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Students arrive at the student services counter at an average of one every 15 minutes. Each request takes on average 12 minutes to be processed.
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The optimal solution of the linear programming problem is at the intersection of constraints 1 and 2. What is the range of optimality for product X? What is the range of optimality for product Y?
1 nafta combined the economies ofa. the u.s. canada and mexico b. canada mexico and south america c. south
Illustrate what percentage of parts will not meet weight specifications. Within illustrate what values will 95.44 percent pf sample means of process fall, if samples of n=16 are taken also process is in control (random).
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