SOLUTION: Bill is twice as old as Mary. If he is exactly ten years older than Mary was last year, how old are Bill and Mary?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Bill is twice as old as Mary. If he is exactly ten years older than Mary was last year, how old are Bill and Mary?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 456570: Bill is twice as old as Mary. If he is exactly ten years older than Mary was last year, how old are Bill and Mary?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
b=2m
b=10+(m-1)
2m=10+m-1
2m=9+m
m=9
b=18