The table below shows the calories, fat, and carbohydrates per ounce for three brands of cereal, and the total amount of calories, fat, and carbohydrates required for a special diet.                            Calories     Fat     Carbohydrates Cereal Brand X          50         0              22 Cereal Brand Y        108        0.1           25.5 Cereal Brand Z        127        5.5             18 Total Required         393        5.7             91 (i) Using the information in the table above, write a system of three equations. (ii) Write a system in matrix form Ax = b . (ii) Using the Cramer's Rule or Inverse Method, find the amount of each brand of cereal that will give the level of nutrition required.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.4: Applications
Problem 1EQ: 1. Suppose that, in Example 2.27, 400 units of food A, 600 units of B, and 600 units of C are placed...
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The table below shows the calories, fat, and carbohydrates per ounce for three brands of cereal, and the total amount of calories, fat, and carbohydrates required for a special diet.


                           Calories     Fat     Carbohydrates
Cereal Brand X          50         0              22
Cereal Brand Y        108        0.1           25.5
Cereal Brand Z        127        5.5             18
Total Required         393        5.7             91


(i) Using the information in the table above, write a system of three equations.


(ii) Write a system in matrix form Ax = b .


(ii) Using the Cramer's Rule or Inverse Method, find the amount of each brand of cereal that will give the level of nutrition required.

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