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Constrained Optimization: Multiple Internal Constraints Fisher Company produces two types of components for airplanes: A and B, with unit contribution margins of $400 and $600,

Constrained Optimization: Multiple Internal Constraints

Fisher Company produces two types of components for airplanes: A and B, with unit contribution margins of $400 and $600, respectively. The components pass through three sequential processes: cutting, welding, and assembly. Data pertaining to these processes and market demand are given below (weekly data).

Resource Resource Available Resource Usage (A) Resource Usage (B)
Cutting 300 machine hours Six hours Ten hours
Welding 308 welding hours Ten hours Six hours
Assembly 400 labor hours Four hours Ten hours
Market demand (A) 50 One unit Zero units
Market demand (B) 40 Zero units One unit

Required:

1. Express Fisher Company's constrained optimization problem as a linear programming model. If an an answer box does not require an entry, enter "0" for your answer.

Objective function: Max Z = $400 A + $600 B

Internal constraints: fill in the blank 1 A + fill in the blank 2 B fill in the blank (cutting)
fill in the blank 4 A + fill in the blank 5 B fill in the blank (welding)
fill in the blank 7 A + fill in the blank 8 B fill in the blank (assembly)
External constraints: A fill in the blank
B fill in the blank
Nonnegativity constraints: A fill in the blank
B fill in the blank

2. Select the graph that solves the linear programming model expressed in Requirement 1.

a. b.
c. d.

Correct answer is .

Which constraints are binding?

3. What if Fisher Company had 10 additional machine hours (cutting) with all other resources held constant? What is the new optimal mix? Enter the appropriate corner point for your answer.

What is the associated total contribution margin? Round the units of A and B to two decimal places, and round intermediate calculations and your final answer to the nearest dollar.

$fill in the blank

What is the incremental benefit per machine hour caused by the additional ten hours, if any?

$fill in the blank per machine hour

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