SOLUTION: If shuanais now 4 years older than her sister. Two years ago, shuanais was three times as old as the sister was. How old is each girl?
Algebra.Com
Question 1024331: If shuanais now 4 years older than her sister. Two years ago, shuanais was three times as old as the sister was. How old is each girl?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Call her and her sister's age NOW, x and y. Then we write
x = y + 4
Two years ago
x - 2 = 3(y - 2)
Now substitute the first equation into the second equation...we get
y+4 - 2 = 3(y - 2)
y + 2 = 3y - 6
8 = 2y and
y = 4
so that
x = 8
RELATED QUESTIONS
Jennifer is 6 years older than her sister Janette. 4 years ago she was 4 times as old as... (answered by macston)
Caridad is 6 years older than her sister. Four years ago she was 4 times as old as her... (answered by drj)
amie is six years older than her sister. Eiht years ago she was four times as old as her... (answered by Maths68)
four years ago SOPHIE WAS twice as old as her sister. right now she is 1.5 times older... (answered by josmiceli)
Robbie is four years older than his sister, Michela. seven years ago, Robbie was three... (answered by TimothyLamb)
Caridad is six years older than her sister. Four years ago she was 4 times as old as her... (answered by ptaylor)
A man is 2 years older than his sister. Thirty years ago he was 3 times as old as her.... (answered by JulietG)
A man is 2 years older than his sister. Thirty years ago he was 3 times as old as her.... (answered by ankor@dixie-net.com)
five years ago, sue was five times as old as her sister. sue is three times as old as her (answered by stanbon)