Paula invests $\$10,\!000$ for 5 years at an interest rate of $10\%$ per year. If the interest is simple interest, how much is her investment worth at the end of those five years?
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<|im_start|>user
Paula invests $\$10,\!000$ for 5 years at an interest rate of $10\%$ per year. If the interest is simple interest, how much is her investment worth at the end of those five years?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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user
\$15,\!000
Paula invests $\$10,\!000$ for 5 years at an interest rate of $10\%$ per year. If the interest is simple interest, how much is her investment worth at the end of those five years?
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