document.write( "Question 395229: A mother is twice as old as her daughter.Twenty years ago, the mother was four times as old as her daughter. What is their present age? \n" ); document.write( "
Algebra.Com's Answer #280505 by mananth(16946)![]() ![]() You can put this solution on YOUR website! A mother is twice as old as her daughter.Twenty years ago, the mother was four times as old as her daughter. What is their present age?\r \n" ); document.write( "\n" ); document.write( "... \n" ); document.write( "daughter = x years \n" ); document.write( "mother = 2x years \n" ); document.write( "... \n" ); document.write( "20 years ago \n" ); document.write( "daughter = x-20 \n" ); document.write( "mother = 2x-20 \n" ); document.write( ".. \n" ); document.write( "2x-20 = 4(x-20) \n" ); document.write( "2x-20 = 4x-80 \n" ); document.write( "2x-4x=-60 \n" ); document.write( "-2x=-60 \n" ); document.write( "x=30 daughter's age \n" ); document.write( "mother's age = 60 years \n" ); document.write( " \n" ); document.write( " |