document.write( "Question 194019: You invest money into an account where the interest is compounded continuously. If the accounts value doubles in 9 years, what is the interest rate? \n" ); document.write( "
Algebra.Com's Answer #145646 by RAY100(1637)\"\" \"About 
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continuous interest formula is A=Pe^rt,
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\n" ); document.write( "A=Pe^rt
\n" ); document.write( "A/P= 2 = e^(r*9)
\n" ); document.write( "ln both sides
\n" ); document.write( "ln2 = 9r,,,,,,,,,,,,,,,,,,,,,,,,ln e^rt = rt
\n" ); document.write( "lnr/9 = .077 = r
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\n" ); document.write( "A=Pe^rt
\n" ); document.write( "A/P = 2 = e^(.077 * 9) =2,,,,,ok
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