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Suppose that I agree to pay you .08 cents for every problem you solve correctly on a test and fine you .05 cents for for every problem that you get wrong. If, at the end of 26 problems, we do not owe each other any money, how many problems did you get right?
You have exactly $537 to spend on party gifts for your rich uncle’s birthday party. You decide to get watches for the ladies (at $27.98 each), and beepers for the men (at $23.46 each). You know that the number of watches required will be 3 times as much as the number...
Write a system of equations to model this situation. Then use your system to solve. At a garage sale, a CD costs three times as much as a book. You bought 3 books and 2 CDs. You spent $18. What is the price of a CD and the price of a book?
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