SOLUTION: In three years time Joanne will be twice as old as her daughter. If Joanne is 45 years old now how old is her daughter?
Algebra ->
Linear-equations
-> SOLUTION: In three years time Joanne will be twice as old as her daughter. If Joanne is 45 years old now how old is her daughter?
Log On
Question 775367: In three years time Joanne will be twice as old as her daughter. If Joanne is 45 years old now how old is her daughter? Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! In three years time Joanne will be twice as old as her daughter.
J + 3 = 2(D + 3)
If Joanne is 45 years old now
45 + 3 = 2(D + 3)
48 = 2D + 6
2D = 48 - 6
2D = 42
D = 21
Daughter is 21 years old.
Hope this helps.
;-)