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Mary has 55 coins worth a total of $7.25. The coins are nickels, dimes, and quarters. She has five more quarters than nickels. How many

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Mary has 55 coins worth a total of $7.25. The coins are nickels, dimes, and quarters. She has five more quarters than nickels. How many of each are there? Number of Quarters: Number of Dimes: Number of Nickels: D Question 3 12 pts Perform the row operations on the given augmented matrix. Type the new matrix in the table below. 2 1 4 15 34 -2 -15 3X R1 + - 2 X R2 - R2 45 -1 -12

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