document.write( "Question 251618: A population of 100 grows at a rate of 8% a year forever. What is the size of population at end of year 1? Year 2? Year 3? What is the size of the population at the end of year n (for any integer n)? What algebraic equation would you need to solve to find the number of years x that it would take for our population to reach 200?
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document.write( "I can figure 1-3 years but I am lost on the rest. Could anyone please help? Thank you. \n" );
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Algebra.Com's Answer #183303 by scott8148(6628) You can put this solution on YOUR website! Po is starting population __ P is present population\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "P = Po (1 + .08)^n\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "200 = 100 (1.08)^x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2 = 1.08^x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "log(2) = x log(1.08)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "log(2) / log(1.08) = x \n" ); document.write( " |