• Nutrition: animals. A special diet for laboratory animals is to contain at least 850 units of vitamins, 800 units of minerals, and 1,150 calories. There are two feed mixes available, mix A and mix B. A gram of mix A contains 2 units of vitamins, 2 units of minerals, and 4 calories. A gram of mix B contains 5 units of vitamins, 4 units of minerals, and 5 calories.(A) If mix A costs $0.04 per gram and mix B costs $0.09 per gram, how many grams of each mix should be used to satisfy the requirements of the diet at minimal cost? What is the minimum cost?(B)
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