Question
Question 1 Working with chemists at Virginia Tech and George Washington Universities, landscape contractor Kenneth Golding blended his own fertilizer, called Golding-Grow. It consists of
Question 1
Working with chemists at Virginia Tech and George Washington Universities, landscape contractor Kenneth Golding blended his own fertilizer, called "Golding-Grow." It consists of four chemical com- pounds, C-30, C-92, D-21, and E-11. The cost per pound for each compound is indicated as follows:
Chemical
Compound
Cost Per
Pound ($)
C-30
0.12
C-92
0.09
D-21
0.11
E-11
0.04
The specifications for Golding-Grow are as follows: (1) E-11 must constitute at least 15% of the blend; (2) C-92 and C-30 must together constitute at least 45% of the blend; (3) D-21 and C-92 can together constitute no more than 30% of the blend; and (4) Golding-Grow is packaged and sold in 50-pound bags.
1.Formulate an LP problem to determine what blend of the four chemicals will allow Golding to minimize the cost of a 50-pound bag of the fertilizer. (5 marks)
2.Find the optimal point and cost. (5 marks)
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