document.write( "Question 1093073: Robert gets a loan from his bank. He agrees to borrow £6 000 at a fixed annual simple interest rate of 7%. He also agrees to pay the loan back over a 10 year period. How much money in total will he have paid back at the end of 10 years. \n" ); document.write( "
Algebra.Com's Answer #707679 by Theo(13342)![]() ![]() You can put this solution on YOUR website! the formula for simple interest is:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "i = p * r * n\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f = p + i\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "combine the two formulas together and you get f = p + p * r * n.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "factor out the p to get f = p * (1 + r * n).\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "i is the interest \n" ); document.write( "p is the present value or principal \n" ); document.write( "r is the interest rate per time period \n" ); document.write( "n is the number of time periods. \n" ); document.write( "f is the future value\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "in your problem:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "p equals 6000 \n" ); document.write( "r = .07 per year \n" ); document.write( "n = 10 years.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the formula becomes 6000 * (1 + .07 * 10) = 6000 * 1.7 = 10200.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if you calculated it separately from i = p * r * n and then f = p * i, you would get the same result.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "i = p * r * n becomes i = 6000 * .07 * 10 which becomes 4200.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f = p + i becomes f = 6000 + 4200 which becomes 10200.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |