document.write( "Question 345188: To save for their retirement, a couple deposits $4000 in an account that pays 5.9% annual interest compounded quarterly. What will be the value of their investment after 20 years? \n" ); document.write( "
Algebra.Com's Answer #246876 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! To save for their retirement, a couple deposits $4000 in an account that pays 5.9% annual interest compounded quarterly. What will be the value of their investment after 20 years? \n" ); document.write( ". \n" ); document.write( "A = P(1 + r/n)^(nt) \n" ); document.write( "where \n" ); document.write( "A is amount after time t \n" ); document.write( "P is the initial amount \n" ); document.write( "r is the interest rate \n" ); document.write( "n is the number of time it is compounded \n" ); document.write( ". \n" ); document.write( "Plugging in what is given: \n" ); document.write( "A = 4000(1 + .059/4)^(4*20) \n" ); document.write( "A = 4000(1 + .059/4)^80 \n" ); document.write( "A = 4000(1 + 0.01475)^80 \n" ); document.write( "A = 4000(1.01475)^80 \n" ); document.write( "A = 4000(3.226) \n" ); document.write( "A = $12905.80 \n" ); document.write( " \n" ); document.write( " |