SOLUTION: A daughters present age is half the present age of her father. 10 years ago the father was thrice as old as his daughter. What are their present ages?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: A daughters present age is half the present age of her father. 10 years ago the father was thrice as old as his daughter. What are their present ages?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 952778: A daughters present age is half the present age of her father. 10 years ago the father was thrice as old as his daughter. What are their present ages?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A daughters present age is half the present age of her father. 10 years ago the father was thrice as old as his daughter. What are their present ages?
-------------
F = 2D
F - 10 = 3(D - 10)
------
Sub for F
2D - 10 = 3D - 30
D = 20