SOLUTION: Jodi is twice as old as Andrea. The difference in their ages is 21. How old is Andrea?

Algebra ->  Linear-equations -> SOLUTION: Jodi is twice as old as Andrea. The difference in their ages is 21. How old is Andrea?      Log On


   

Question 1077126: Jodi is twice as old as Andrea. The difference in their ages is 21. How old is Andrea?
Answer by Alan3354(69443) About Me  (Show Source):