1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nezavi [6.7K]
3 years ago
5

A mining company owns two mines, each of which produces three grades (high, medium, and low) of ore. The company has a contract

to supply a smelting company with at least 12 tons of high- grade ore, at least 8 tons of medium-grade ore, and at least 24 tons of low-grade ore. Each hour of operation, mine 1 produces 6 tons of high- grade ore, 2 tons of medium-grade ore, and 4 tons of low-grade ore. Each hour of operation, mine 2 produces 2 tons of high-grade ore, 2 tons of medium-grade ore, and 12 tons of low-grade ore. It costs $200 per hour to operate mine 1 and $160 per hour to operate mine 2. How many hours should each mine be operated so as to meet the contractual obligations at the lowest total operating cost.
Required:
a. Formulate a linear programming model for this problem.
b. Solve this model by using graphical analysis.

Business
1 answer:
sashaice [31]3 years ago
7 0

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:

C=200M_1+160M_2

Restrictions:

- High-grade ore: 6M_1+2M_2\geq12

- Medium-grade ore: 2M_1+2M_2\geq8

- Low-grade ore: 4M_1+12M_2\geq24

- No negative hours: M_1,M_2\geq0

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.

You might be interested in
Which of the following statements regarding the opportunity cost of producing potatoes and the production possibilities frontier
Temka [501]

Answer: A. The island of Atlantis has an increasing opportunity cost of producing potatoes and the production possibility frontier is bowed outward.

Explanation:

When there is an increasing opportunity cost of producing a good, the Production Possibilities Frontier (PPF) will be bowed out to represent that as more of the good is being produced, more of another good is being given up to do so.

For the island of Atlantis therefore, as they produce more of potatoes, they are giving up being able to produce whatever more and more of other goods they produce which is therefore leading to a PPF that is bowed outward.

8 0
3 years ago
The section of his business plan in which Jones sets forth the purpose of his cabinet-making business-its reason for existing-is
lorasvet [3.4K]

Answer:

The correct answer is letter "C": "Mission Statement".

Explanation:

A company's mission statement represents the objective that the firm must set. That objective must last and should be adaptable to the changes it could be exposed to. It clearly states the purpose of the company and why it exists and operates. The mission statement also identifies by whom the entity is formed and their respective functions.

4 0
3 years ago
Wildhorse Co. sells merchandise on account for $2800 to Morton Company with credit terms of 2/8, n/30. Morton Company returns $8
kipiarov [429]

Answer: Cash $1,960

Sales returns and allowances $800

Sales discount $40

Accounts receivable $2,800

Explanation:

Sales = $2,800

Sales returns = $800

Discount rate = 2%

The final amount due will be:

= Sales- Sales returns

= $2,800 - $800

= $2,000

Sales discount = 2% × $2,000 = $40

Cash received will be:

Final amount due - Sales discount

= $2,000 - $40

= $1,960

The journal entry will be:

Debit Cash $1,960

Debit Sales returns and allowances $800

Debit Sales discount $40

Credit Accounts receivable $2,800

5 0
2 years ago
4. Which of the following situations typically would result from an appreciating U.S. dollar relative to the
patriot [66]

Answer:

D. Americans purchase more Canadian made products.

Explanation:

The situation that would typically result from an appreciating U.S. dollar relative to the Canadian dollar is "Americans purchase more Canadian made products."

When Americans purchase more Canadian-made products, the Canadian dollar will rise or appreciate against the U.S. dollar. This is based on the principle of trade balance, whereby the monetary value of a country's imports and exports are evaluated over a given period.

In this case, the monetary value of Canadian exports against the U.S. dollar will indicate a positive trade surplus, hence, the Canadian dollar or currency will appreciate against the U.S. dollar.

5 0
3 years ago
A nation's legal system is usually of very little interest to international business managers, because international businesses
olganol [36]

The answer is True

The four fundamental systems of civil law, common law, statutory law, and religious law—or mixtures of these—are typically the foundations of the present national legal systems. However, because each nation's legal system is molded by its distinct past, it contains distinctive variances. Comparative law is the name of the field of study that examines law just at level of legal systems.

Both civil law (also known as Roman law) and legal system systems can be regarded as the most prevalent in the globe. Civil law is the most prevalent in terms of both landmass and population, while common law is used by the most people of any single civil law system.

To know more about fundamental refer to brainly.com/question/2224584

#SPJ4

7 0
1 year ago
Other questions:
  • An evaluation of the effectiveness and efficiency of various systems within an organization is called a(n) _____ audit.
    14·1 answer
  • A put on Sanders stock with a strike price of $31 is priced at $2 per share, while a call with a strike price of $31 is priced a
    9·1 answer
  • In an Apple market-product grid for its personal computer line, the professional segment of medium/large businesses seems willin
    11·1 answer
  • You bought an American put option some time ago. Today it has one year left to expiration. Interest rate is 10% per year. Annual
    8·1 answer
  • Which employee role is directly accountable to ensure that employees are implementing security policies consistently
    13·1 answer
  • Ramirez Company installs a computerized manufacturing machine in its factory at the beginning of the year at a cost of $48,400.
    10·1 answer
  • Problem solving and critical thinking are ______ because they use logic and reasoning to develop and evaluate options
    6·1 answer
  • PLLZZ HELLLP DUE IN 1 MINNNN
    7·2 answers
  • Bonnie made the final payment to Big Bank on the 30-year mortgage loan she had on her home. Shortly thereafter Big Bank, to prov
    11·1 answer
  • When the interest rate increases, the opportunity cost of holding money Group of answer choices increases, so the quantity of mo
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!