document.write( "Question 798531: sarah is 15 yrs older than joseph. in ten years from now. sarah will be twice as old as joseph .how old is sarah now? \n" ); document.write( "
Algebra.Com's Answer #482259 by Finavon(81)![]() ![]() ![]() You can put this solution on YOUR website! Sarah S; Joseph J \n" ); document.write( "Now S=J+15 \n" ); document.write( "Later (S+10)=2(J+10) \n" ); document.write( "Substitute for S \n" ); document.write( "J+15+10=2J + 20 \n" ); document.write( "Rearrange \n" ); document.write( "5=J \n" ); document.write( "So S=20 \n" ); document.write( "Sarah is 20 yrs \n" ); document.write( " |