document.write( "Question 906550: a mother is 46 years old and her son 21 years old in the year 1997.In what year was the mother six times as old as son? \n" ); document.write( "
Algebra.Com's Answer #549945 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! a mother is 46 years old and her son 21 years old in the year 1997. \n" ); document.write( "In what year was the mother six times as old as son? \n" ); document.write( ": \n" ); document.write( "Let y = no. yrs ago Mom was 6 times as old as the son \n" ); document.write( ": \n" ); document.write( "46 - y = 6(21 - y) \n" ); document.write( "46 - y = 126 - 6y \n" ); document.write( "-y + 6y = 126 - 46 \n" ); document.write( "5y = 80 \n" ); document.write( "y = 80/5 \n" ); document.write( "y = 16 yrs ago \n" ); document.write( ": \n" ); document.write( "1997 - 16 = 1981 Mom was 6 times son \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Confirm this by finding how old each was 16 yr ago \n" ); document.write( "46 - 16 = 30 \n" ); document.write( "21 - 16 = 5 \n" ); document.write( "6 * 5 = 30 \n" ); document.write( " |