
Concept explainers
Interpretation: Contour lines for the problem of locating a machine shop described in Problem 28, needs to be drawn.
Concept Introduction: The line that passes through or drawn through points having the same value is called a contour line.

Answer to Problem 33P
Contour lines have been drawn along the plotted points.
Explanation of Solution
Given information: Contour lines for locating the machine shop is drawn from the values of points derived.
The procedure for drawing contour lines is as follows:
- The points need to be plotted on a graph paper, and horizontal and vertical lines need to be drawn along their respective axis.
- The horizontal and vertical lines, needs to be clearly numbered from left to right.
- It is being assumed, Di to be the sum of weights of points along the horizontal line i and Ci be the sum of weights of points along the vertical line j .
- Following is the method for computing numbers:
M1=M0+2C1 N0=N0+2D1M2=M1+2C2 N1=N1+2D2
Where Ci represents the total of the weights added up along the vertical line and Di represents the total of the weights added up along the horizontal line.
A region (i,j) can be defined as bounded by the ith vertical line and the (i+1)th vertical line and horizontally by the jth horizontal line and (j+1)th horizontal line. The area below the first horizontal line is represented by (i,0) , and that towards the left of the first vertical line is represented by (0,j) . The contour line’s slope is given by the formula:
Sij=−MiNj
After calculating the slopes of the contour lines, it is drawn by starting from any point, moves forward along the predetermined slopes, as calculated from the above mentioned formula and at an angle
The weights and coordinates of the locations of machines are being tabulated as follows:
Location of machines | Weight |
(3,3) | 18 |
(3,7) | 18 |
(8,4) | 14 |
(12,3) | 1 |
(14,6) | 16 |
Let us assume the following:
(a1,b1)=(3,3); (a2,b2)=(3,7); (a3,b3)=(8,4); (a4,b4)=(12,3); (a5,b5)=(14,6)
and w1=18; w2=18; w3=14; w5=16 . With these points the horizontal and vertical lines are drawn along the axis and the values of M0,M1,M2,M3,M4 and N0,N1,N2,N3,N4 are calculated.
M0=−(18+18+14+1+16)=−56M1=−53+12=−76M2=−76+12=−23M3=−23+2=43M4=43+26=53
N0=−(18+18+14+1+16)=−56N1=53+94=712N2=712+12=1312N3=1312+13=1712M4=1712+14=53
Further, in order to find the slope, the ratios are calculated:
S0,0=−1S1,0=−(−76)/(−53)=−0.7S2,0=−(−23)/(−53)=−0.4S3,0=−(43)/(−53)=−0.8S4,0=−(53)/(−53)=0.1 S0,1=−(−53)/(712)=−2.8S1,1=−(−76)/(712)=12S2,1=−(−23)/(712)=1.1S3,1=−(43)/(712)=−2.2S4,1=−(53)/(712)=−2.8
S0,2=−(−53)/(1312)=1.5S1,2=−(−76)/(1312)=1.07S2,2=−(−23)/(1312)=0.61S3,2=−(43)/(1312)=−1.2S4,2=−(53)/(1312)=−1.5S0,3=−(−53)/(1712)=1.17S1,3=−(−76)/(1712)=0.82S2,3=−(−23)/(1712)=0.47S3,3=−(43)/(1712)=−0.94S4,3=−(53)/(1712)=1.17
S0,4=−(−53)/(53)=1S1,4=−(−76)/(53)=0.7S2,4=−(−23)/(53)=0.4S3,4=−(43)/(53)=−0.8S4,4=−(53)/(53)=−1
From the derived points, the contour lines has been plotted as shown in the figure below:
Want to see more full solutions like this?
Chapter 11 Solutions
EBK PRODUCTION AND OPERATIONS ANALYSIS
- discuss team development stagesarrow_forwardLearning Activity 6: Canadian Business This Year Read the following webpage: The Business Development Bank of Canada. (2023). Canadian economic outlook for 2024: Shifting into neutral. https://www.bdc.ca/en/articles- tools/blog/canadian-economic-outlook-for-2024- shifting-into-neutral "Despite persistently high inflation and rising. interest rates, the news was generally better than expected for the Canadian economy in 2023" (BDC Blog 2024). Discussion Question: In your view, what are the most pressing problems for Canadian companies or consumers in 2024? Explain your answer using current examples of companies or consumer concerns.arrow_forwardTravelling and working internationally can lead to a life of adventure and unique career experiences. For businesses, selecting the right candidates to take on foreign assignments can propel, delay, or deny the success of the international ventures. As an international manager, identify key competencies you would look for in choosing expatriates. What might be some of their concerns in taking on overseas assignments? What are some best practices in supporting expats during and after their assignments?arrow_forward
- Research proposal: The Investigation of Career Development and Job satisfaction atEskom Rotek Industries 1. Introduction (250 words) 2. Research Context: Background (Research Context: Background (250 words) 3. The Research Problem (The Research Problem) 4. Aim of the study (Maximum 50 words) 5. Research Objectives (3 in total) 6. Research Questions (3 in total) 7. Justification or rationale of the study (150 words) 8. Literature Review (2-3 pages / 1000-1500 words) 9. Research Design and Methodology (1 - 2 page in total, from 9.1 to 9.6) 9.1 Research Philosophy 9.2 Research Methodology 9.3 Target Population and Sampling strategy 9.4 Data Collection 9.5 Data Analysis (100 words) 9.6 Pilot Study 10. Ethical considerations 11. Referencearrow_forwardWith your experience and research, discuss;(a) what type of “Leadership Style” is used in communications services (Digicel Group Limited)?(b) whether the style used is successful or not and why. Justify your position with relevant citation and references ( Rubic is attached to guide the essay ) NOTE: NO AI RESPONSES PLEASEarrow_forwardby the end of 2013, the IPL port was operational and the naphtha was flowing to the Himachal Fertilizer Corporation (HFC) plant in Central India after being granted the port contract in Summer 2012. The plant was located in an industrial area that had several pipelines in the general geographic area including a crude oil pipeline leading to a refinery, and a pipeline carrying pesticides to be processed and redistributed to local farms in the area. In July 2014, Ajay Patel, the logistics general manager received notification that there were some minor leaks along the pipeline that were being fixed. Workers in the area had experienced sudden headaches and lightheadedness and the company immediately moved to investigate the leak and address faulty seams that had eroded and weakened. The flow of naphtha was temporarily stopped for 72 hours so two portions of the pipeline could be removed, and the eroded portions replaced. Patel put enormous pressure on the repair team to get the repair…arrow_forward
- in the MABE: learning to be multinational case report, what is the reccomended course of action?arrow_forwardIn the MABE case report what would be the reccomened course of action?arrow_forwardQuestion 6. An electrical engineering company is designing two types of solar panel systems: Standard Panels (S) and High-Efficiency Panels (H). The company has certain constraints regarding the hours of labor and material available for production each week. Each Standard Panel requires 4 hours of labor and 2 units of material and each High-Efficiency Panel requires 3 hours of labor and 5 units of material. The company has a maximum of 60 hours of labor and 40 units of material available per week. The profit from each Standard Panel is GH¢80, and the profit from each High-Efficiency Panel is GH¢100. The company wants to determine how many of each type of panel to produce in order to maximize profit. i) Solve this LPP by using graphical analysis ii) What will be the slack at the optimal solution point? Show calculation.arrow_forward
- qusestion 6. An electrical engineering company is designing two types of solar panel systems: Standard Panels (S) and High-Efficiency Panels (H). The company has certain constraints regarding the hours of labor and material available for production each week. Each Standard Panel requires 4 hours of labor and 2 units of material and each High-Efficiency Panel requires 3 hours of labor and 5 units of material. The company has a maximum of 60 hours of labor and 40 units of material available per week. The profit from each Standard Panel is GH¢80, and the profit from each High-Efficiency Panel is GH¢100. The company wants to determine how many of each type of panel to produce in order to maximize profit. i. Formulate a linear programming model of the problem for the company. ii Convert the linear programming model formulated in (a) to a standard form.arrow_forwardG ווח >>> Mind Tap Cengage Learning 1- CENGAGE MINDTAP Chapter 09 Excel Activity: Exponential Smoothing Question 1 3.33/10 e Submit 自 A ng.cengage.com C Excel Online Student Work G A retail store records customer demand during each sales period. 1. What is the f... Q Search this course ? ✓ Co Excel Online Tutorial Excel Online Activity: Exponential Smoothing A-Z A retail store records customer demand during each sales period. The data has been collected in the Microsoft Excel Online file below. Use the Microsoft Excel Online file below to develop the single exponential smoothing forecast and answer the following questions. Office Video X Open spreadsheet Questions 1. What is the forecast for the 13th period based on the single exponential smoothing? Round your answer to two decimal places. 25.10 2. What is the MSE for the single exponential smoothing forecast? Round your answer to two decimal places. 21.88 Activity Frame ? 3. Choose the correct graph for the single exponential…arrow_forwardNot use ai pleasearrow_forward
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
