document.write( "Question 40144: how long will it take for prices in the economy to double at a %2 annual inflation rate? \n" ); document.write( "

Algebra.Com's Answer #25565 by Nate(3500) $\"\"$ $\"About$

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P(a) = a(1 + r)^t
\n" ); document.write( "2a = a(1 + .02)^t
\n" ); document.write( "2 = (1.02)^t
\n" ); document.write( "log(2) = t*log(1.02)
\n" ); document.write( "log(2)/log(1.02) = t
\n" ); document.write( "About 35.0028 years \n" ); document.write( "

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