A company has 2 mines: mine A produces 1 ton of coal daily of high quality anthracite, 2 tons of medium quality coal and 4 tons of low quality coal; Mine B produces 2 tons of each of the three classes. This company needs 70 tons of high quality coal, 130 of medium quality and 150 low quality. The daily expenses of mine A amount to CU500 and those of mine B at 750 u.m. How many days will they have to work in each mine so that the cost function is minimum? Formulate the Programming Model Linear and solve it with the Graphical Method and the Tabular Simplex Method. Has to show the step by step of its development and conclude with the context of the problem.

8. A fast-food chain wants to build four stores. In the past, the chain has used six different construction companies and, satisfied with each, has invited them to bid on each job. The final bids (in lakhs of rupees) were as shown in the following table: Construction companies 1 2 3 4 5 6. Store 1 85.3 88.0 87.5 82.4 89.1 86.7 Store 2 78.9 77.4 77.4 76.5 79.3 78.3 81.7 d 85.5 al ( ob Store 3 82.0 81.3 82.4 80.6 83.5 Store 4 84.3 84.6 86.2 83.3 84.4

The cost of operating a bus involves the cost of gasoline , the driver's wage and other maintenance cost. Assume that the cost of Gasoline is $ 1.25 per litre , the driver earns $ 45 per hour , and maintenance cost is $ 0.18 per kilometre. If the fuel efficiency of the bus traveling at 80 Kilometres per hour is 9.6 litre per 100 kilometres, determine the cost of operating the bus (in Dollars) over a distance of 400 Kilometres. Enter your answer without units. Enter an integer or a fully reduced fraction such as 104 , 216 , 2056/7. etc. No spaces please

The Sentry Lock Corporation sells a variety of electronic goods through television shows. The company has a number of storages to keep the goods it sells, but also takes out a lease on additional storage space when required. During the next 5 months the company anticipates that it is going to need to take out a lease on the following amounts of additional storage space: Month 1 2 3 4 5 Square Feet(ft2) Needed 20,000 30,000 40,000 35,000 50,000 In the beginning of any month the company can take out a lease on additional space for one or more months at the following costs: Lease Term (months) 1 2 3 4 5 Cost per Sq. Ft. Leased $55 $85 $130 $165 $185 Therefore, for example, in the beginning of month 1 the company can take out a lease on as much space as it requires for four months at a cost of $165 per ft2 . Similarly, in the beginning of month 3 it can take out a lease on any amount of space for two months at a cost of $85 per ft2 . The company needs to determine the optimal way of…

Transformers for underground works were planned to be provided. Type A has an initial cost of $70,000 and a life of 8 years. Type B has an initial cost of $95,000 and a life expectancy of 12 years. The annual operating cost for type A is expected to be $9000, while the AOC for type B is expected to be $7000. Salvage values are $5000 for type A, and $10,000 for type B. Using the incremental cash flow analysis, choose the better alternative.

There are three factories located at AR, IN, and TX respectively. From these locations, a certain commodity is to be delivered to each of the two warehouses situated at A and B. The revenue per commodity item is $10. The weekly demand of the warehouse A and B are respectively 50 and 35 units of the commodity while the production capacity of the factories at AR, IN, and TX are respectively 28, 22, and 35 units. The cost of transportation per unit is given as belows.   Cost Warehouse A Warehouse B AR 5 3 IN 6 6 TX 2 4   To maintain a good relationship with all the factories, warehouse B requires that it receives at least 40% of its product from factory in TX. Realize that it is making good profit in warehouse A, AR requires that at least 35% of its product shipped to warehouse A. Formulate (without solving) a linear programming problem to maximize the profit.

A certain faculty printer is shared by staff and students. Suppose that the rate of generating requests to the printer by staff is twice that of students, but that the average time to print a student printout is the same as average time for a faculty printout. If the utilization of the printer by the students is 25%, the utilization of the printer by the faculty is 50%, the overall average service time is 1 minute, what is the average time the students spend waiting for their printout (time spend in system)?

A tent manufacture produces regular and expedition tents at three branches. Per hour of operation, the Harrogate branch produces 20 regular tents and 10 expedition tents. The Skipton branch produces 0 regular tents and 20 expedition tents, and the York branc h produces 80 regular tents and 20 expedition tents. In order to meet the demand, the company needs to produce exactly 240 regular tents and 100 expedition tents each day. How many hours per day should each branch operate in order to produce the required amounts of tent? Solve using Gauss-Jordan elimination method.

Turnover is planned at 2.5 for the six-month peris starting February 1 through July 31. Average weekly sales for that period are $75,000. What average stock should be carried in this situation? $800,000 $900,000 O $720,000 $780,000

A city of 70000 residents has an average water demand of 250 L/ca.day. The institutional and commercial, and industrial average areas in the city are 250 and 350 Ha, and water demand expected is 20 and 23 m3 /Ha.d. The public water use and water unaccounted for are 10 and 6 % of total municipal water demand, respectively. Calculate total municipal demand and each component quantity as a % of total municipal demand.