
To find: The number of sheets should be shipped from the east side store to customer A and customer B and from the west side store to customer A and customer B t minimize the delivery cost.

Answer to Problem 10P
The numbers of sheets are to be shipped from the east side to the customer A is 50 and east side store to the customer B is 25, the numbers of sheets are to be shipped from the west side to the customer A is 0 and west side to the customer B is 45.
Explanation of Solution
Given:
Customer A needs 50 sheets and Customer B needs 70 sheets.
The east side store delivery cost per sheet is
The west side store delivery cost per sheet is
The east side store has 80 sheets and west side store has 45 in stock.
Calculation:
Suppose the number of sheets to be shipped from the east side to the Customer A is x and to the Customer B is y.
Use the given information to make the inequalities and the objective function for the feasible region.
The required information is shown in the table below.
Customer A | Customer B | Total | |
East side |
x | y | 80 |
East side |
|
|
|
The objective function is,
The constraint to get the feasible region has shown below.
Take the equality in the above equations to find the value of x and y as,
And,
Substitute 50 for x in the equation (1),
Substitute 50 for x in the equation (2),
Substitute 70 for y in the equation (1),
Substitute 70 for y in the equation (2),
The graph of the given constraints is shown below.
Figure (1)
The vertices which lies in the feasible region is shown below.
Substitute the 50 for x and 25 for y in the objective function
Substitute the 50 for x and 30 for y in the objective function
Substitute the 10 for x and 70 for y in the objective function
Substitute the 0 for x and 16 for y in the objective function
So, all the satisfies these vertices are shown in the table below.
Vertices |
|
|
|
|
|
| 1482 |
|
|
Thus, the minimum delivery cost is
Chapter 10 Solutions
Precalculus: Mathematics for Calculus - 6th Edition
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