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is my calculations correct? The wizard lives on a secret mountaintop where he brews 3 types of ale to sell at the local tavern. A

is my calculations correct?
The wizard lives on a secret mountaintop where he brews 3 types of ale to sell at the local tavern. A liter of his mead sells for 8 gold profit and requires 5 bundles of hops and 6 hours of labor to produce. Beer sells for 6 gold and requires 4 bundles of hops and 3 hours of labor, while barley wine sells for wine right, each liter needs to be stored in its own special barrel, of which the wizard only has 7.
How many liters of each beverage should the wizard produce this week to gain the most gold if he has 75 bundles of hops and is willing to work 80 hours?
Formulation
Let x1 be the liters of mead produced.
Let x2 be the liters of beer produced.
Let x3 be the liters of barley wine produced.
Objective function: 8x1+6x2+10x3
Constraints
Hopps constraint:
51+42+3375
Labour hours constraint:
61+42+2380
Barley barrels constraint: x37
Primal simplex algorithm and
algorithm and optimal solution
Matricec and mathematical nreliminariec
Calculating the range for a column of a basic variable. (row 0)
Let us try to find the range of the x3 column. To do this we will first need to find the range of C3 or the amount by which the x3 coefficient in the objective function can change before we need to recalculate the optimal solution.
To do this we first need to recalculate CBVB-1
Then we recalculate the variables in the objective function row of the optimal tablue to see how much we can change C3 before we need to pivot again and change the optimal solution.
Calculating the range for a column of a basic variable. (row 0)
We see that the only non basic variable in the objective function row affected by the change of C3 will be s3.
Therefore, the range by which x3's coefficient can change in the objective function before we have to recalculate the optimal solution is -5.2
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