SOLUTION: Alice invested some money at 12% simple interest. At the end of the year the total amount of her original principal and the interest was $6720. How much did she originally invest?

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Question 881122: Alice invested some money at 12% simple interest. At the end of the year the total amount of her original principal and the interest was $6720. How much did she originally invest?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
6720/1.12=$6000