document.write( "Question 997721: Ms.Vangie Dimaano wishes to realize a return of 12% on her total investments. If she has P40,000 invested at 10%, then how much additional money should she invest at 14%? \n" ); document.write( "
Algebra.Com's Answer #854457 by ikleyn(53937) You can put this solution on YOUR website! . \n" ); document.write( "Ms.Vangie Dimaano wishes to realize a return of 12% on her total investments. \n" ); document.write( "If she has P40,000 invested at 10%, then how much additional money should she invest at 14%? \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " Calculations in the post by @lwsshak3 are fatally incorrect and lead to wrong answer.\r \n" ); document.write( "\n" ); document.write( " For correct solution see what follows in my post.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "let x=additional money invested at 14% \n" ); document.write( "0.1*40000 + 0.14x = 0.12*(40000+x) \n" ); document.write( "4000 + 0.14x = 4800 + 0.12x \n" ); document.write( "0.02x = 800 \n" ); document.write( "x = 800/0.02 = 80000/2 = 40000.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "how much additional money should she invest at 14% ? P40,000. ANSWER\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Solved correctly to teach you in a right way.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "////////////////////////\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Since 12% is midway between 10% and 14%, this answer is intuitively obvious \n" ); document.write( "without any calculations, so the problem can be easily solved/answered MENTALLY.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |