document.write( "Question 548047: How long will it take for $8200 to grow to $46,400 at an interest rate for 10.5% if the interest is compounded continuously? \n" ); document.write( "
Algebra.Com's Answer #358889 by lwsshak3(11628)\"\" \"About 
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How long will it take for $8200 to grow to $46,400 at an interest rate for 10.5% if the interest is compounded continuously?
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\n" ); document.write( "Interest formula for continuous compounding: A=Pe^rt, P=initial investment, r=annual interest rate, A=amount after t years.
\n" ); document.write( "46400=8200e^.105t
\n" ); document.write( "464/82=e^.105t
\n" ); document.write( "take log (base e) of both sides using calculator
\n" ); document.write( "ln(464/82)=.105t*lne
\n" ); document.write( "lne=log of base=1
\n" ); document.write( "t=ln(464/82)/.105
\n" ); document.write( "t≈16.5 years
\n" ); document.write( "ans:For $8200 to grow to $46,400 will take 16.5 years
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