document.write( "Question 938625: in four years a mother will be 5 times as old as her daughter. at present, the mother is 9 times as old as her daughter. how old are the mother and daughter today? \n" ); document.write( "
Algebra.Com's Answer #571821 by algebrahouse.com(1659)![]() ![]() You can put this solution on YOUR website! x = daughter now \n" ); document.write( "9x = mother now {at present, the mother is 9 times the daughter}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x + 4 = daughter in 4 years {added 4 onto current age} \n" ); document.write( "9x + 4 = mother in 4 years {added 4 onto current age}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9x + 4 = 5(x + 4) {in 4 years a mother will be 5 times the daughter} \n" ); document.write( "9x + 4 = 5x + 20 {used distributive property} \n" ); document.write( "4x = 16 {subtracted 5x and subtracted 4 from each side} \n" ); document.write( "x = 4 {divided each side by 4} \n" ); document.write( "9x = 36 {substituted 4, in for x, into 9x}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "daughter is 4 and mother is 36 \n" ); document.write( " For more help from me, visit: www.algebrahouse.com \n" ); document.write( " |