Mathematics, 27.12.2020 16:00, KenyanaBDavis
The university is scheduling cleaning crews for its ten buildings. Each crew has a different cost and is qualified to clean only certain buildings. There are eight possible crews to choose from in this case. The goal is to minimize costs while making sure that each building is cleaned. The management science department formulated the following linear programming model to help with the selection process.
Min 200x1 + 250x2 + 225x3+ 190x4 + 215x5 + 245x6 + 235x7 + 220x8
s. t. x1 + x2 + x5 + x7 ≥ 1 {Building A constraint}
x1 + x2 + x3 ≥ 1 {Building B constraint}
x6 + x8 ≥ 1 {Building C constraint}
x1 + x4 + x7≥ 1 {Building D constraint}
x2 + x7 ≥ 1 {Building E constraint}
x3 + x8 ≥ 1 {Building F constraint}
x2 + x5 + x7 ≥ 1 {Building G constraint}
x1 + x4 + x6 ≥ 1 {Building H constraint}
x1 + x6 + x8 ≥ 1 {Building I constraint}
x1 + x2 + x7 ≥ 1 {Building J constraint}
xj={1, if crew j is selected0, otherwisexj=1, if crew j is selected0, otherwise
Set up the problem in Excel and find the optimal solution.
a. What is the cost of the optimal crew assignment?
b. Which crews are assigned to work?
crew 1 will
crew 2 will
crew 3 will
crew 4 will
crew 5 will
crew 6 will
crew 7 will
crew 8 will
Answers: 1
Mathematics, 21.06.2019 17:00, nataliemoore1974
Explain how you do each step what term makes it inconsistent y=2x - 4 ?
Answers: 1
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