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Mathematics 13 Online
OpenStudy (anonymous):

Soo is 8 years older than Marco. In four years, Soo will be twice as old as Marco. How old is Soo?

OpenStudy (anonymous):

i dont need the answer i need the steps

OpenStudy (here_to_help15):

I put the wrong thing

Vocaloid (vocaloid):

well, we can write two equations, where s = Soo's age and m = Marco's age right now, Soo is 8 years older than Marco, so s = m + 8 in 4 years, Soo will be twice as old as Marco, so we know that s + 4 = 2m do you understand so far?

OpenStudy (anonymous):

yea

Vocaloid (vocaloid):

great, so you can solve for s, soo's age

OpenStudy (anonymous):

12

OpenStudy (anonymous):

?

OpenStudy (anonymous):

???

Vocaloid (vocaloid):

uh, not quite, you solved for m but we want Soo's age, so we need to solve for s

OpenStudy (anonymous):

so soo is 20

OpenStudy (anonymous):

?

Vocaloid (vocaloid):

great! you got it

OpenStudy (anonymous):

thanx

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