document.write( "Question 1133290: You deposit $1250 in an account that pays 5.4% annual interest compounded monthly.\r
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document.write( "a. When does your balance first exceed $1750?\r
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document.write( "after _____ years and _____ months \n" );
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Algebra.Com's Answer #750466 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! 1750=1250(1+0.054/12)^12t, where t=number of years. \n" ); document.write( "1750/1250=1.4=(1.0045)^12t \n" ); document.write( "logs both sides \n" ); document.write( "log(1.4)=12tlog(1.0045) \n" ); document.write( "12t=log(1.4)/log(1.0045)=74.94 \n" ); document.write( "It will be in the 75th month or 6y3m.\r \n" ); document.write( "\n" ); document.write( "check 1250(1.0045)^75=$1750.47 \n" ); document.write( " |