SOLUTION: 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?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: 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?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

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?
Answer by Finavon(81) About Me  (Show Source):
You can put this solution on YOUR website!
Sarah S; Joseph J
Now S=J+15
Later (S+10)=2(J+10)
Substitute for S
J+15+10=2J + 20
Rearrange
5=J
So S=20
Sarah is 20 yrs