The following table gives the number of milligrams of vitamins A, B, C con- tained in one gram of each of the food supplements F1, F2, F3. АВ С F1 3 F2 2 F3| 2 1 2 1 2 (a) What is the amount of vitamins A, B and C in the mixture that contains 1 gram of food F1, 2 grams of food F2, 3 grams of food F3? (b) A mixture of foods F1, F2 and F3 is to be prepared containing precisely 6 milligrams of vitamin A, 2 milligrams of vitamin B and 4 milligrams of vitamin C. What is the minimal and what is the maximal amount of F3 that we can use to prepare this mixture?

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
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Chapter2: Systems Of Linear Equations
Section2.4: Applications
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The following table gives the number of milligrams of vitamins A, B, C con-
tained in one gram of each of the food supplements F1, F2, F3.
АВС
F1 3
F2 2
F3| 2
1
1
2
2
(a) What is the amount of vitamins A, B and C in the mixture that contains
1 gram of food F1, 2 grams of food F2, 3 grams of food F3?
(b) A mixture of foods F1, F2 and F3 is to be prepared containing precisely
6 milligrams of vitamin A, 2 milligrams of vitamin B and 4 milligrams of
vitamin C. What is the minimal and what is the maximal amount of F3
that we can use to prepare this mixture?
Transcribed Image Text:The following table gives the number of milligrams of vitamins A, B, C con- tained in one gram of each of the food supplements F1, F2, F3. АВС F1 3 F2 2 F3| 2 1 1 2 2 (a) What is the amount of vitamins A, B and C in the mixture that contains 1 gram of food F1, 2 grams of food F2, 3 grams of food F3? (b) A mixture of foods F1, F2 and F3 is to be prepared containing precisely 6 milligrams of vitamin A, 2 milligrams of vitamin B and 4 milligrams of vitamin C. What is the minimal and what is the maximal amount of F3 that we can use to prepare this mixture?
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