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:
C) image
Explanation:
A product's image is how consumers perceive and view a company's product.
Sometimes the concept of product image is broader than how potential customers perceive your specific product, since it can include how they perceive your brand as a whole or the type of product as a whole.
For example, if the public considers a brand to be low quality, when they see an attractive product from that brand, their product will be nice but low quality.
There must be at least two lines on any plane because a plane is defined by 3 non-collinear points.
It is true that this change would probably be a good move, as it would increase the ROE from 7.5% to 13.5%.
<u>Explanation:</u>
Equity multiplier is calculated by dividing the total assets of a company to shareholder’s equity of an organization. If a company has not raised any debt, then such company would be having equity multiplier equal to 1. t is a leverage ratio.
Return on equity is another financial measure to calculate the return. It is calculated by dividing the net income of a company to the shareholder’s equity. It directly shows the amount that a company is earning on its money invested by the equity shareholders.
Answer:
Deadweight loss is $5000
Explanation:
Calculation to determine what deadweight loss is
First step is to calculate the Change in quantity
Change in quantity =2500-2000
Change in quantity=500 unit
Now let determine the Deadweight loss
Using this formula
Deadweight loss =0.5* Change in quantity *(Willingness to pay at the price ceiling -Price ceiling)
Let plug in the formula
Deadweight loss =0.5*500*(50-30)
Deadweight loss=250*20
Deadweight loss =5000
Therefore the deadweight loss is $5000