document.write( "Question 1038595: Please help me solve this equation:Daniel is three times as old as kathryn. seven years ago, daniel was five times as old as kathryn. How are old they? \n" ); document.write( "
Algebra.Com's Answer #653302 by ikleyn(52788)![]() ![]() You can put this solution on YOUR website! . Please help me solve this equation:Daniel is three times as old as kathryn. seven years ago, daniel was five times as old as kathryn. How are old they? \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "D = 3K (1) (Daniel is three times as old as kathryn)\r\n" ); document.write( "D-7 = 5*(K-7) (2) (Seven years ago . . . )\r\n" ); document.write( "\r\n" ); document.write( "Substitute the expression (1) for D into (3).\r\n" ); document.write( "\r\n" ); document.write( "Then solve the single equation for K.\r\n" ); document.write( "\r\n" ); document.write( "It is how all (almost all) age problems are solved.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "See the lessons \r \n" ); document.write( "\n" ); document.write( " - Age problems and their solutions\r \n" ); document.write( "\n" ); document.write( " - A fresh formulation of a traditional age problem\r \n" ); document.write( "\n" ); document.write( " - Really intricate age word problem\r \n" ); document.write( "\n" ); document.write( " - Selected age word problems from the archive\r \n" ); document.write( "\n" ); document.write( " - Age problem for the day of April, 1 \r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |