Barry is 8 years older than his sister. In 3 years, he will be twice as old as she will be then. How old is each now?
Please show work!
I don't understand.
5 answers
I really need help.
B = S + 8
B + 3 = 2(S+3)
Substitute S + 8 for B.
S + 8 + 3 = 2(S+3)
S + 11 = 2S + 3
can you finish from here?
B + 3 = 2(S+3)
Substitute S + 8 for B.
S + 8 + 3 = 2(S+3)
S + 11 = 2S + 3
can you finish from here?
yes thanks
S-S+11=2S-S+3
11=S+3
11-3=S
8=S
Therefore
16=S+8
11=S+3
11-3=S
8=S
Therefore
16=S+8
Matt is 24 years older than his son Liam, in two years Liam will be half of Matts age. How old is Liam now?
2 answers