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Integer Linear Programming

Problem is enclosed in attachment.

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Hawkins manufacturing Company produces connection rods for 4- and 6- cylinder automobile engines using the same production line. The cost required to set up the production line to produce the 4-cylinder connecting rods is $2000, and the cost required to set up the production line for the 6- cylinder connecting rods is $3500. Manufacturing costs are $15 for each 4- cylinder connecting rod and $18 for each 6-cylinder connecting rod. Hawkins makes a decision at the end of each week as to which product will be manufactured the following week. If there is a production changeover from one week to the next, the weekend is used to reconfigure the production line. Once the line has been set up, the weekly production capacities are 6000 6-cylinder connecting rods and 8000 4-cylinder connecting rods. Let
= the number of 4-cylinder connecting rods produced next week
= the number of 6-cylinder connecting rods produced next week
= 1 if the production line is set up to produce the 4-cylinder connecting
rods 0 otherwise
= 1 if the production line is set up to produce the 6-cylinder connecting
rods 0 otherwise
a. Using the decision variables and write a constraint that limits next week's production of the 4-cylinder connecting rods to either 0 or 8000 units
b. Using the dicision variables and , write a constraint that limest next weeks production of the 6-cylinder connectiong rods to either 0 or 8000 units.
c. Write three constraints that, taken together, limit the production of connecting rods for next week.
d. Write an objective function for minimizing the cost of production for next week.
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