document.write( "Question 268809: if the U.S grows at an annual rate of 7.5%, how long will take to reach a population of 400 000 000?(the population, now, is 300 000 000) \n" ); document.write( "

Algebra.Com's Answer #854073 by josgarithmetic(39790) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"300000000%2A%281.075%29%5Ex=400000000\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"3%281.075%29%5Ex=4\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"1.075%5Ex=4%2F3\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%2Alog%281.075%29=log%281.3333333%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=%28log%281.333333%29%29%2Flog%281.075%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"x=0.1249386%2F0.031485\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=3.964\"$ \r
\n" ); document.write( "\n" ); document.write( "About 4 years \n" ); document.write( "

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