Tuesday, February 10, 2009

Exercise 5: Application of Matrices

Question 1



a) A - Weights : Simply put the weight of the cheese and meat in a 1*2 matrix.



[ 5 ]


[ 6 ]


b) B - Vitamins for Each : Here i did the same thing in a) but it is a 2*2 matrix.



[ 5 ~ 7 ]


[ 3 ~ 9 ]


c) C - Total Vitamins : For this one i put the numbers from the diagram into my calculator on a 2*2 matrix for (B). Then i put the weights of the items into a 1*2 matrix for (A). Multiply (A) and (B) together to get the answer.



[ 43 ]


[ 89 ]



d) Cash Total : Multiply price per kg by how much kg was purchased to get total price.



Cheese = $2.25(5) = $11.25
Meat = $3.50 (6) = $21.00




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