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How long will lucy have to wait before her $2500 invested at 6% earns $600 ?

User Limoragni
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1 Answer

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\$2500+\$600=3100\$\\\\100\%+6\%=106\%=1.06\\\\\$2500\cdot1.06^n=\$3100\ \ \ /:\$2500\\\\1.06^n=1.24\\\\log_(1.06)1.06^n=log_(1.06)1.24\\\\n=log_(1.06)1.24\\\\n\approx4\ (years)
User Agrynchuk
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