document.write( "Question 1098354: Haley invested $2,000.00 in a 36-month certificate of deposit (CD) that earned 7% annual simple interest. When the CD matured she rolled the entire amount into a mutual fund that had growth equivalent to 14% compounded annual. How much was the mutual fund worth after 9 years? Round your answer to 2 decimal places and separate the thousands by a comma. \n" ); document.write( "
Algebra.Com's Answer #712726 by Theo(13342)![]() ![]() You can put this solution on YOUR website! she put 2000 into a cd that earned 7% annual interest simple for 36 months.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "formula for future value of an investment at simple interest is:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f = p * (1 + r*n)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f is the future value \n" ); document.write( "p is the present value \n" ); document.write( "r is the interest rate per time period \n" ); document.write( "n is the number of time periods.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "formula becomes:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f = 2000 * (1 + .07*3)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "that's if the time periods are expressed in years.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if the time periods are expressed in months, then the interest rate is per month and the number of time periods is in months.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "formula would then becomes f = 2000 * (1 + .07/12 * 36)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the answer will be the same.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "to confirm, use the two formulas to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f = 2000 * (1 + .07 * 3) = 2420.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f = 2000 * (1 + .07/12 * 36) = 2420.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "at the end of the 3 year period, the balance is invested at 14% interest per year compounded annually for 9 years.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the formula there is f = p * (1+r)^n\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f is the future value \n" ); document.write( "p is the present value \n" ); document.write( "r is the interest rate per time period. \n" ); document.write( "n is the number of time period.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "formula becomes f = 2420 * (1.14)^9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve for f to get f = 7869.715421\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "round to 2 decimal and include commas and the answer becomes 7,869.72\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |