document.write( "Question 24328: Sarah is four more than four times as old as Denise. In 8 years the sum of their ages will be 85. How old is Sarah now? \n" ); document.write( "
Algebra.Com's Answer #12922 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! Sarah = 4+4x \n" ); document.write( "Denise = x \n" ); document.write( "Sarah in eight years = 8+4+4x \n" ); document.write( "Denise in eight years = 8+x \n" ); document.write( "Sum = 85\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(8+4+4x)+(8+x)=85 Simplfy \n" ); document.write( "5x+20=85 \n" ); document.write( "5x=65 \n" ); document.write( "x=13\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4+4(13)=56\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hence, Sarah is 56 years old and Denise is 13 years old. \n" ); document.write( "Paul. \n" ); document.write( " |