Question : 5) In linear programming, the goals of management expressed in: : 1216920

 

5) In linear programming, the goals of management are expressed in:

A) an objective function

B) constraints

C) operating policies

D) business functions

 

6) A mathematical inequality or equality that must be appeased is known as a(n):

A) objective function

B) constraint

C) operating policy

D) business function

 

7) Computer Products produces two keyboards, Regular and Special. Regular keyboards have a unit contribution margin of $128, and Special keyboards have a unit contribution margin of $720. The demand for Regulars exceeds Computer Product’s production capacity, which is limited by available machine-hours and direct manufacturing labor-hours. The maximum demand for Special keyboards is 80 per month. Management desires a product mix that will maximize the contribution toward fixed costs and profits.

 

Direct manufacturing labor is limited to 1,600 hours a month and machine-hours are limited to 1,200 a month. The Regular keyboards require 20 hours of labor and 8 machine-hours. Special keyboards require 34 labor-hours and 20 machine-hours.

 

Let R represent Regular keyboards and S represent Special keyboards. The correct set of equations for the keyboard production process is:

A) Maximize:$128R + $720S

Constraints:

Labor-hours:20R + 34S ≤ 1,600

Machine-hours:8R + 20S ≤ 1,200

Special:S ≤ 80

S ≥ 0

Regular:R ≥ 0

B) Maximize:$128R + $720S

Constraints:

Labor-hours:20R + 34S ≥ 1,600

Machine-hours:8R + 20S ≥≤ 1,200

Special:S ≥ 80

S ≥ 0

Regular:R ≥ 0

C) Maximize:$720S + $128R

Constraints:

Labor-hours:20R + 8S ≤ 1,600

Machine-hours:34R + 20S ≤ 1,200

Special:S ≤ 80

S ≥ 0

Regular:R ≥ 0

D) Maximize:$128R + $720S

Constraints:

Labor-hours:20R + 34S ≤ 1,600

Machine-hours:8R + 20S ≤ 1,200

Special:S ≥ 80

S ≤ 0

Regular:R ≤ 0

 

8) Replacing an old machine will increase operating income in the long run, but NOT for this year. A manager may choose not to replace the machine if performance evaluations are based on performance over a single year.

9) Managers tend to favor alternatives that make their own performance look better.

 

10) How can conflicts arise between the decision model and the performance evaluation model used to evaluate managers? Provide an example of this type of conflict.

 

Objective 11.A

 

1) Linear programming is a tool that maximizes total contribution margin of a mix of products with multiple constraints.

2) Local Steel Construction Company produces two products, steel and wood beams. Steel beams have a unit contribution margin of $200, and wood beams have a unit contribution margin of $150. The demand for steel beams exceeds Local Steel Construction Company’s production capacity, which is limited by available direct labor and machine-hours. The maximum demand for wood beams is 90 per week. Management desires that the product mix should maximize the weekly contribution toward fixed costs and profits.

 

Direct manufacturing labor is limited to 3,000 hours a week and 1,000 hours is all that the company’s outdated machines can run a week. The steel beams require 120 hours of labor and 60 machine-hours. Wood beams require 150 labor hours and 120 machine-hours.

 

Required:

Formulate the objective function and constraints necessary to determine the optimal product mix.

 

 

 

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