document.write( "Question 327697: \" If you have five dollars to invest and you are able to double your money every year, how many years will it take you to earn one million dollars?\"\r
\n" ); document.write( "\n" ); document.write( "I need to show algebra. Thank you so much! \n" ); document.write( "

Algebra.Com's Answer #235622 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"F=5%2A%282%5Et%29\"$
\n" ); document.write( "First year, $\"F=5%2A2=10\"$
\n" ); document.write( "Second year, $\"F=5%2A4=20\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "Find $\"t\"$ so that F=1,000,000
\n" ); document.write( " $\"5%2A2%5Et=1000000\"$
\n" ); document.write( " $\"2%5Et=200000\"$
\n" ); document.write( " $\"t=log%282%2C%28200000%29%29\"$
\n" ); document.write( " $\"t=log%28%28200000%29%29%2Flog%28%282%29%29\"$
\n" ); document.write( " $\"t=5.301%2F0.301\"$
\n" ); document.write( " $\"t=17.6\"$ years
\n" ); document.write( "At the 17th year you'd have $655,360.
\n" ); document.write( "At the 18th year you'd have $1,310,720.
\n" ); document.write( " \n" ); document.write( "

\n" );