a. Let X₁ = number of skirts produced, X₂ = number of dresses produced, X3 = number of sport coats produced. Specify the objective function and constraints for the problem. Objective function: Maximize Z = X₁ + x₂ + x3
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- Friendly Waste Co. runs three different factories and is required by law to safely dispose of chemicals. Waste from three different factories can be processed to reduce the amount of two different types of pollutants. State law requires that the total reduction in the amount of pollutant A is at least 30 tons and pollutant B is at least 40 tons. Using the information in the following table: Factory Proc Cost Per Ton Reduction Plant A Reduction Plant B 1 15 0.1 0.45 2 10 0.2 0.25 3 20 0.4 0.3 •Algebraically formulate a linear programming model to represent this problem.The Electrocomp Corporation manufactures two electrical products: air conditioners and large fans. The assembly process for each is similar in that both rquire a certain amount of wiring and drilling. Each air condtioner takes 3 hours of wiring and 2 hours of drilling. During the next production period, 240 hours of wiring time are available, and up to 140 hours of drilling time may be used. Each air conditioner sold yieds a profit of $25. Each fan assembled may be sold for a $15 profit. Formulate the best combination of air conditioners and fans that yiedls the highest profit. Use the corner point graphical approach.A machine shop manufactures two types of bolts. The bolts require time on each of the three groups of machines, but the time required on each group differs, as shown in the table below. Type I Type IIMachine 1 0.2 min 0.2 minMachine 2 0.6 min 0.2 minMachine 3 0.04 min. 0.08 min Production schedules are made up one day at a time. In a day, 300, 720, and 100 minutes are available, respectively, on these machines. Type I bolts sell for 15¢ and type II bolts for 20¢. (a) How many of each type of bolt should be manufactured per day to maximize revenue?(b) What is the maximum revenue?(c) Suppose the selling price of type I bolts began to increase. Beyond what amount would this price have to increase before a different number of each type of bolts should be produced to maximize revenue?
- A manufacturing fi rm has discontinued production of a certain unprofi table product line.Considerable excess production capacity was created as a result. Management is consideringdevoting this excess capacity to one or more of three products: X1, X2, and X3.Machine hours required per unit areProductMachine Type X1 X2 X3Milling machine 8 2 3Lathe 4 3 0Grinder 2 0 1The available time in machine hours per week isMachine Hours per WeekMilling machines 800Lathes 480Grinders 320The salespeople estimate they can sell all the units of X1 and X2 that can be made. Butthe sales potential of X3 is 80 units per week maximum.Unit profi ts for the three products areUnit ProfitsX1 $20X2 6X3 8a. Set up the equations that can be solved to maximize the profi t per week.b. Solve these equations using the Excel Solver.c. What is the optimal solution? How many of each product should be made, and whatshould the resultant profi t be?d. What is this situation with respect to the machine groups? Would they…Creative sports design (CSD) manufactures a standard size racket and an over sized racket. The firm's rackets are extremely light due to the use of a magnesium- graphite alloy that was invented by the firm's founder. Each standard size racket uses 0.125 kilograms of the alloy and each oversize racket uses 0.4 kilograms; over the next two week production period only 80 kilograms of the alloy are available. Each standard size racket uses 10 min. of manufacturing timeand each oversize racket uses 12 min. The profit contributions are $10 for each standard size racket and $15 for each oversized racket, and 40 hours of manufacturing time are available each week. Managment specified that at least 20% of the total production must3 be the standard size racket. How many rackets of each type should CSD manufacture over the next 2 weeks to maximize the total profit contributions? Assume that because of the unique nature of their products, CSD can sell as many rackets as they can produce?The Trim-Look Company makes several lines of skirts,dresses, and sport coats. Recently, a consultant suggested thatthe company reevaluate its South Islander line and allocateits resources to products that would maximize contributionto profits and to overhead. Each product requires the samepolyester fabric and must pass through the cutting and sewingdepartments. The following data were collected for the study: The cutting department has 100 hours of capacity, sewing has180 hours of capacity, and 60 yards of material are available.Each skirt contributes $5 to profits and overhead; each dress,$17; and each sport coat, $30.a. Specify the objective function and constraints for thisproblem.b. Use a computer package such as POM for Windows tosolve the problem.
- The Electrocomp Corporation manufactures two electrical products: air conditioners and large fans. The assembly process for each is similar in that both require a certain amount of wiring and drilling. Each air conditioner takes 3 hours of wiring and 2 hours of drilling. Each fan must go through 2 hours of wiring and 1 hour of drilling. During the next production period, 240 hours of wiring time are available and up to 140 hours of drilling time maybe used. Each air conditioner sold yields a profit of $25. Each fan assembled may be sold for a $15 profit. Formulate and solve this LP production mix situation to find the best combination of air conditioners and fans that yields the highest profit. Use the corner point graphical approach) Creative Sports Design (CSD) manufactures a standard-size racket and an oversize racket.The firm’s rackets are extremely light due to the use of a magnesium-graphite alloy that wasinvented by the firm’s founder. Each standard-size racket uses 0.125 kilograms of the alloy andeach oversize racket uses 0.4 kilograms; over the next two-week production period only 80kilograms of the alloy are available. Each standard-size racket uses 10 minutes of manufacturingtime and each oversize racket uses 12 minutes. The profit contributions are $10 for eachstandard-size racket and $15 for each oversize racket, and 40 hours of manufacturing time areavailable each week. Management specified that at least 20% of the total production must be thestandard-size racket. How many rackets of each type should CSD manufacture over the next twoweeks to maximize the total profit contribution? Assume that because of the unique nature oftheir products, CSD can sell as many rackets as they can produce.009. from: small and medium. There are two flavors to choose from: chocolate and strawberry. There are two toppings to choose from: cherries and nuts. The tree diagram below shows the possible outcomes. Use the diagram to answer the questions. Size small medium Flavor chocolate strawberry chocolate strawberry (a) How many outcomes are there? 8 outcome(s) Topping cherries nuts cherries nuts cherries nuts cherries nuts Outcome (small, chocolate, cherries) (small, chocolate, nuts) (small, strawberry, cherries) (small, strawberry, nuts) (medium, chocolate, cherries) (medium, chocolate, nuts) (medium, strawberry, cherries) (medium, strawberry, nuts) (b) How many outcomes do not have chocolate ice cream being chosen? outcome(s) (c) How many outcomes have both strawberry ice cream and cherries being chosen? outcome(s)
- Triple X Company manufactures and sells refrigerators. It makes some of the parts for the refrigerators and purchases others. The engineering department believes it might be possible to cut costs by manufacturing one of the parts currently being purchased for $8.25 each. The fi rm uses 100,000 of these parts each year. The accounting department compiles the following list of costs based on engineering estimates:Fixed costs will increase by $50,000. Labor costs will increase by $125,000.Factory overhead, currently running $500,000 per year, may be expected to increase 12 percent.Raw materials used to make the part will cost $600,000.Given the preceding estimates, should Triple X make the part or continue to buy it?Please no written by hand and no emage Kindly create a spreadsheet from the problem description. Find the optimal solution using Excel Solver (Please show working with steps on a spreadsheet) : The Heinrich Company manufactures two types of plastic hangerracks (Foldaways and Straightaways) especially suited for mountingnear clothes dryers. Because permanent press clothing must be hungon hangers immediately after removal from the dryer, these items havebeen especially popular. However, there is some concern that thePreppie movement (popularized by its own handbook) will extinguishpolyester clothing; Heinrich is terribly interested in doing the best withthe resources it has while its products are still in demand. The firsttype of hanger rack, the Foldaway, requires 10 ounces of plasticmaterial and 0.3 hours of labor. Plastic costs Heinrich 10 cents anounce; labor costs Heinrich $20 per hour. The second type of hangerrack, the Straightaway, requires 15 ounces of plastic and 0.175…A producer of furniture has to make the decision about the production planning for 2 of its products: work desks and lunch tables. There are 2 resources available for production which these products are using: lumber and carpentry. 20 units of each resource is available. Here is the table containing the data for the problem: