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:
transferred-out 135,000
Explanation:
We solve using the following identity:
beginning WIP + cost added during the period:
total cost to be accounted for.
Then this value can be either ransferred-out r remain at the ending WIP
so we construct as follows:
beginning 0
added 180,000
Total cost 180,000
ending <u> (45,000) </u>
transferred-out 135,000
Answer:
The Oscar's fixed costs per month is $2,500
Explanation:
Fixed cost: The fixed cost is that cost in which the amount is remain fixed whether production level change or not, that means it does not have any effect on the production level.
In the given question,
Monthly rent is $2,500 which is fixed so, it would be considered as fixed cost
The per hour pay and electrical bill depend upon the total hours of operation which means if the more hours, the workers are engaged so more pay will be give to them, and more electricity bill come.
And if they are working few hours, than less rate and less electrical bill will be there which reflects the variable cost. So, these cost are considered variable cost. Thu, it would not be included in the fixed cost.
Hence, Oscar's fixed costs per month is $2,500
Answer:
It would fall
Explanation:
The unemployment rate measures the amount of people who are out of a job for at least 4 weeks, and are actively seeking to find a new job. If a person is not willing or able to search for a job, he/she is not considered unemployed nor part of the labor force.
If unemployed people just quit looking for jobs, the unemployment will decrease even though the number of people who are out a job increases. This happens because as soon as someone quits looking for new job, they are not considered unemployed anymore.