
Some of the following exercises are similar or identical to exercises and examples in Chapter 4. Use matrix inverses to find the solutions. We suggest that you invert some of the matrices by hand and others using technology.
Nutrition One serving of Campbell Soup Company’s Campbell’s Pork & Beans contains 5 grams of protein and 21 grams of carbohydrates.16 A typical slice of “lite” rye bread contains 4 grams of protein and 12 grams of carbohydrates.
a. I am planning a meal of beans-on-toast, and I want it to supply 20 grams of protein and 80 grams of carbohydrates. How should I prepare my meal?
b. If I require A grams of protein and B grams of carbohydrates, give a formula that tells me how many slices of bread and how many servings of Pork & Beans to use.

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Chapter 5 Solutions
Finite Mathematics and Applied Calculus (MindTap Course List)
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