SOLUTION: Manuel is 8 years older than his sister. 3 years ago he was 3 times older than his sister. How old are they now
Algebra.Com
Question 931668: Manuel is 8 years older than his sister. 3 years ago he was 3 times older than his sister. How old are they now
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
x sister's age. Manual (x+8)
.......
3 years ago..
(x+8) - 3 = 3(x-3)
x + 5 = 3x - 9
14 = 2x
7 = x, sister's age . Manual is 15
And checking...3 years ago
12 = 3(4)
RELATED QUESTIONS
can you help me solve the world problem "Manuel is 8 years older than his sister. Three... (answered by macston,josmiceli)
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)
larry is 8 years older than his sister. in 3 years, he will be twice as old as she is... (answered by mananth)
Larry is 8 years older than his sister. In 3 years, he will be twice as old as she is... (answered by Alan3354)
Larry is 8 years older than his sister. In 3 years, he will be twice as old as she is... (answered by jorel1380,MathTherapy,josgarithmetic)
mike is 2 years older than his sister tia. twelve years ago he was twice as old as she... (answered by mike69)
Adam is 12 years older than his sister Liz. Four years ago Adam was 4 times older than... (answered by ikleyn)
Adam is 12 years older than his sister Liz. Four years ago Adam was 4 times older than... (answered by Alan3354)