Chapter 5.5, Problem 34E

Many of Exercises 29-40 are similar or identical to ones in preceding exercise sets. Use duality to answer them.

Nutrition Gerber Products’ Gerber Mixed Cereal for Baby contain, in each serving, 60 calories, no vitamin C, and 11 gram of carbohydrates. Each serving of Gerber Mango Tropical Fruit Dessert contain 80 calorie, 45% of the U.S. Recommended Daily Allowance (RDA) of vitamin C for Infant, and 21 grams of carbohydrates. Each serving of Gerber Apple Banana Juke contain 60 calorie, 120% of the U.S. RDA of vitamin C for infants, and 15 grams of carbohydrate.⁴² Assume that the cereal costs 11 ¢ per serving. the dessert cost 50¢ per serving, and the juice costs 30¢ per serving. If you want to provide your child with at least 180 calorie, at least 120% of the U.S. RDA of vitamin C. and at least 37 grams of carbohydrates, how can you do oat the least cost? What are your shadow costs for calories, vitamin C, and carbohydrates?