document.write( "Question 936380: Mary, who is sixteen years old, is four times as old as her brother. How old will Mary be when she is twice as old as her brother? \n" ); document.write( "
Algebra.Com's Answer #569821 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Mary, who is sixteen years old, is four times as old as her brother. How old will Mary be when she is twice as old as her brother? \n" ); document.write( "*** \n" ); document.write( "let x=number of years Mary will be twice as old as her brother \n" ); document.write( " \n" ); document.write( "16+x=8+2x \n" ); document.write( "x=8 \n" ); document.write( "16+8=24 \n" ); document.write( "How old will Mary be when she is twice as old as her brother? 24 \n" ); document.write( " |