document.write( "Question 431697: Mark is 4 years older than Kate. Together the sum of their ages is three times Kate's age. How old are each? \n" ); document.write( "
Algebra.Com's Answer #299548 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Mark is 4 years older than Kate. \n" ); document.write( "m = k+4 \n" ); document.write( ": \n" ); document.write( "Together the sum of their ages is three times Kate's age. \n" ); document.write( "m + k = 3k \n" ); document.write( "Replace m with (k+4) \n" ); document.write( "k + 4 + k = 3k \n" ); document.write( "2k + 4 = 3k \n" ); document.write( "4 = 3k - 2k \n" ); document.write( "4 = k \n" ); document.write( ": \n" ); document.write( "How old are each? Mark is 8, Kate is 4 \n" ); document.write( " |