SOLUTION: in 30 years, Dino will be 8 times as he was 12 years ago. How old is he now?
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Question 656154: in 30 years, Dino will be 8 times as he was 12 years ago. How old is he now?
Answer by chandrak(4) (Show Source): You can put this solution on YOUR website!
Assume Dinos age now is y
12 years ago Dinos age y-12
8 times of that 8*(y-12)
in 30 years Dinos age y + 30
The equation will be
y + 30 = 8*(y-12)
y + 30 = 8y -96
y - 8y = -126
-7y = -126
y = -126/-7 = 18
Since y is the Dinos age now
Dino is 18 years old
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