document.write( "Question 1209539: Gabriella and Mario plan to send their son to university. To pay for this they will contribute 9 equal yearly payments to an account bearing interest at the APR of 3.4%, compounded annually. Five years after their last contribution, they will begin the first of five, yearly, withdrawals of $35,600 to pay the university's bills. How large must their yearly contributions be? \n" ); document.write( "
Algebra.Com's Answer #852126 by ikleyn(52787)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "In the post by @ElectricPavlov, the logic of the solution is correct.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The formulas that he uses for calculations are correct, too.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "But all his output numbers, that are the results of his calculations, are WRONG.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "His final answer is wrong, too.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It is because they systematically use inadequate calculator or inadequate calculation procedure \n" ); document.write( "for their calculations, which does not provide the necessary precision.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So, if you are looking to get a precise answer for your problems in Finance, \n" ); document.write( "which would be correct at the reference level of accuracy for your answer book, \n" ); document.write( "especially for annuity problems, then @ElectricPavlov is a bad source for such a goal.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "As I look at their performance, I clearly see that they do not understand, at all, \n" ); document.write( "what approximate calculations are and which requirements such calculations must satisfy.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So, their level of understanding approximate calculations corresponds to a 5th grade school student, \n" ); document.write( "who makes such calculations for the first time in his life and who never took/got lessons \n" ); document.write( "from an experienced mentor on the subject.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |