Perth Mining Company operates two mines for the purpose of extracting gold and silver. The Saddle Mine costs$16,000/day to operate, and it yields 50 oz of gold and 3000 oz of silver each of x day. The Horseshoe Mine costs$18,000/day to operate, and it yields 75 oz of gold and 1000 oz of silver each of y day. Company management has set atarget of at least 650 oz of gold and 18,000 oz of silver. How many days should each mine be operated so that the targetcan be met at a minimum cost?(х, у) %3DWhat is the minimum cost?$$ЕЗ

Let x be the number of days saddle mine be operated.And, y be the number of days horseshoe mine be…

Answered: Perth Mining Company operates two mines…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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erth Mining Company operates two mines for the purpose of extracting gold and silver. The Saddle Mine costs $15,000/day to operate, and it yields 65 oz of gold and 2900 oz of silver each day. The Horseshoe Mine costs $15,500/day to operate, and it yields 70 oz of gold and 1300 oz of silver each day. Company management has set a target of at least 540 oz of gold and 16,800 oz of silver. How many days should each mine be operated so that the target can be met at a minimum cost? Saddle- Days Horseshoe- Days Minimum Cost-
Kane Manufacturing has a division that produces two models of grates, model A and model B. To produce each model A grate requires 3 pounds of cast iron and 6 minutes of labor. To produce each model B grate requires 4 pounds of cast iron and 3 minutes of labor. The profit for each model A grate is $1.75, and the profit for each model B grate is $1.25. Available for grate production each day are 1000 pounds of cast iron and 20 labor-hours. Because of an excess inventory of model A grates, management has decided to limit the production of model A grates to no more than 180 grates per day. Maximize P = 1.75x + 1.25y subject to 3x + 4y ≤ 1000 Resource 1 6x + 3y ≤ 1200 Resource 2 x ≤ 180 Resource 3 y ≥ 0 x ≥ 0 (a) Find the shadow price for Resource 2. (Round your answer to the nearest cent.)$ (b) Identify the binding and nonbinding constraints. constraint 1 constraint 2 constraint 3
A manufacturer produces two models of toy airplanes. It takes the manufacturer 32 minutes to assemble model A and 8 minutes to package it. It takes the manufacturer 20 minutes to assemble model B and 10 minutes to package it. In a given week, the total available time for assembling is 3200 minutes, and the total available time for packaging is 960 minutes. Model A earns a profit of $10 for each unit sold and model B earns a profit of $8 for each unit sold. Assuming the manufacturer is able to sell as many models as it makes, how many units of each model should be produced to maximize the profit for the given week? Note that the ALEKS graphing calculator can be used to make computations easier. k trol Model A: unit(s) Model B: unit(s) Continue 1 Q A 2 option X NO 2 Z W S 5 # 3 ME P X E H command $ 4 D 9 R C % 5 F T A V 6 FO G Y 8 7 B Submit A © 2023 McGraw HRLLC Al Rights Reserved forms of Use | Plicy Center the # WY 8 U Deft FN J N 3 9 K M O < P 1 g
A farmer can buy two types of plant food, mix A and mix B. Each cubic yard of mix A contains 36 pounds of phosphoric acid, 30 pounds of nitrogen, and 6 pounds of potash. Each cubic yard of mix B contains 9 pounds of phosphoric acid, 30 pounds of nitrogen, and 36 pounds of potash. The minimum monthly requirements are 540 pounds of phosphoric acid, 900 pounds of nitrogen, and 360 pounds of potash. Find the set of feasible solutions graphically for the amounts of mix A and mix B that can be used.
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An investor has $5000 to invest in three different accounts. One is low-risk,one is a medium-risk and the third is a high-risk investment. The low-risk account is expected to pay 5.2% interest, the medium-risk investment is expected to pay 6.7% interest and the high-risk investment is espected to pay10.3% interest. Due to her age, the investor is willing to invest twice as much money in the high-risk account as in the low-risk investment. How much money should be invested in each of the accounts to anticipate a return of 8% on the total investment.
Perth Mining Company operates two mines to extract gold and silver. The Saddle Mine yields 50 oz of gold and 2000 oz of silver each day. The Horseshoe Mine yields 75 oz of gold and 1000 oz of silver each day. The Company set a target at least 600 oz of gold and 20,000 oz of silver. The cost to operate the Saddle Mine costs $14,000 per day and the Horseshoe Mine cost $16,000 per day. How many days should each mine operate to meet the Company's target at a minimum cost? a. write the objective function. Identify variables. b. write the system of inequalities describing the above constraints. c. create a chart to identify the number to minimize cost, label each. also lost the minimum cost.
Sweet-Fit jeans has a factory that makes two styles of jeans; Super-Fit and Super-Hug. Each pair of Super- Fit takes 12 minutes to cut and 30 minutes to sew and finish. Each pair of Super-Hug takes 12 minutes to cut and 40 minutes to sew and finish. The plant has enough workers to provide at most 12,599 minutes per day for cutting and at most 37,999 minutes per day for sewing and finishing. The profit on each pair of Super-Fit is $6.00 and the profit on each pair of Super-Hug is $7.00. How many pairs of each style should be produced per day to obtain maximum profit? Find the maximum daily profit. (Use x for Super-Fit and y for Super-Hug.) Maximize P = < 12,599 ≤37,999 Maximum profit is $ subject to Enter the solution to the simplex matrix below. If there is no solution enter 'DNE' in the boxes below. If more than one solution exists, enter only one of the multiple solutions below. If needed round jeans to 1 decimal place and profit to 2 decimal places. Number of Super-Fit jeans to…

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