document.write( "Question 588675: \"Stephanie deposited some money in a bank account that earns 5.6% interest compounded continuously. How long will it take to double the amount of money in her account?\"\r
\n" ); document.write( "\n" ); document.write( "So far I used the PERT formula to set up the problem, but without a principal amount I am lost as to how I can give an exact amount of time!\r
\n" ); document.write( "\n" ); document.write( "I have:\r
\n" ); document.write( "\n" ); document.write( "A(t)=Pe^0.56t
\n" ); document.write( "

Algebra.Com's Answer #374578 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
What it is saying is that she starts with \"+P+\"
\n" ); document.write( "and ends up with \"+2P+\" in her account, so
\n" ); document.write( "I can say
\n" ); document.write( "\"+2P+=+P%2Ae%5E%28.056t%29+\"
\n" ); document.write( "Divide both sides by \"+P+\"
\n" ); document.write( "\"+e%5E%28.056t%29+=+2+\"
\n" ); document.write( "\"+.056t+=+ln%28+2+%29+\"
\n" ); document.write( "\"+t+=+ln%282%29+%2F+.056+\"
\n" ); document.write( "You'll have to calculate this.
\n" ); document.write( "All I have is a staples calculator
\n" ); document.write( "
\n" );