Answer:
They should operate Mine 1 for 1 hour and Mine 2 for 3 hours to meet the contractual obligations and minimize cost.
Explanation:
The formulation of the linear programming is:
Objective function:

Restrictions:
- High-grade ore: 
- Medium-grade ore: 
- Low-grade ore: 
- No negative hours: 
We start graphing the restrictions in a M1-M2 plane.
In the figure attached, we have the feasible region, where all the restrictions are validated, and the four points of intersection of 2 restrictions.
In one of this four points lies the minimum cost.
Graphically, we can graph the cost function over this feasible region, with different cost levels. When the line cost intersects one of the four points with the lowest level of cost, this is the optimum combination.
(NOTE: it is best to start with a low guessing of the cost and going up until it reaches one point in the feasible region).
The solution is for the point (M1=1, M2=3), with a cost of C=$680.
The cost function graph is attached.
Answer:
They reveal how the author(s) interpreted the findings of their research and presented recommendations or courses of action based on those findings.
Explanation:
Answer:
The answer is because of the nature of each business and that is explained below.
Explanation:
On the one hand, when it comes to e-business scenarios the people who work in those places know that it is much more complex due to the fact that the managers are dealing with information that is wide range in terms of searching engine, clicks on the website, marketing approaches and more. The owners of this type of business must know how to work with all type of tools that could help the business grow and all that information can be difficult to read and to use sometimes due to the big changes that happen in the internet and in the general public movements every day that will affect your clientele.
On the other hand, the traditional business scenarios may be a little bit less complex due to the fact that they are workind with information that comes straight ahead from the sources, like sales and marketing campaign impacts and more. Therefore that this type of business use all the information that is has to keep the goals of the company at sight thanks to the organization that the managers have.
Finally, it is quite understood that the information technology will always be more difficult to manage in e-business becuase of all the variables and factors that influece the information and the decision making process of the company.
Given that <span>the U.S. dollar exchange rate increased from $0.96 Canadian in June 2011 to $1.03 Canadian in June 2012, and it
decreased from 81 Japanese Yen in June 2011 to 78 Japanese Yen in June 2012.
Between June
2011 and June 2012, the U.S. dollar appreciated against
the Canadian dollar.
Between June 2011 and June 2012,
the U.S. dollar depreciated against the Japanese Yen.</span>