Ralph is 3 times as old as Sara. In 6 years, Ralph will be only twice as old as Sara will be then. Find Ralph's age now.
Ralph's age is _____.
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OpenStudy (dan815):
let Age of Ralph be R
Let age of Sara be S
R=3S currently
in 6 years
R+6=2(S+6)
OpenStudy (dan815):
3S+6=2S+12
S=6
OpenStudy (dan815):
R=3*6=18
OpenStudy (anonymous):
let age of Sara=x
Ralph age=3 x
after 6 years age of Sara=x+6
after 6 years age of Ralph=3x +6
by the given condition
3 x+6=2(x+6)
find x ,then age
OpenStudy (anonymous):
6 x 2 = 12
12 x 3= 36
so I think the answer is 35 unless I did this wrong
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OpenStudy (anonymous):
I mean 36
OpenStudy (anonymous):
Thanks @lexie<3
OpenStudy (anonymous):
no,you are not correct.
OpenStudy (anonymous):
wait
OpenStudy (anonymous):
Ralph is 3 times as old as Sara. In 6 years, Ralph will be only twice as old as Sara will be then. Find Ralph's age now.
Ralph's age is _____.
A.6
B.12
C.18
D.24
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OpenStudy (anonymous):
Its D
OpenStudy (anonymous):
oh sorry I guess I was wrong
OpenStudy (anonymous):
again it is not correct.
OpenStudy (anonymous):
3x+6=2x+12
3 x-2 x=12-6
x=6
3x=3*6=?
OpenStudy (anonymous):
18?
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OpenStudy (anonymous):
yeahhh
OpenStudy (anonymous):
so Ralph's age=?
OpenStudy (anonymous):
18!
OpenStudy (anonymous):
right?
OpenStudy (anonymous):
yes gimp
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