The Humidor blends regular coffee, high mountain coffee, and chocolate to obtain three kinds of coffee: Early Riser, After Dinner, and Deluxe. The Early Riser blend is 80% regular and 20% high mountain coffee. The After Dinner blend is 75% regular, 20% high mountain, and 5% chocolate. The Deluxe is 50% regular, 40% high mountain, and 10% chocolate. They receive an order for 65 pounds of Early Riser, 80 pounds of After Dinner, and 40 pounds Deluxe. Write the matrices A and B for which AB gives the amount of regular, high mountain coffee, and chocolate required to fill the order.
What will be an ideal response?
Mathematics
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B. 2
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D. 
Mathematics
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a. [ 0, ?) b. [ –3. 3] c. (–?, ?) d. [–2,3]
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If a problem asks you to “Find a formula . . . “ you might begin by
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Mathematics