SOLUTION: Gabriela is 36 years old and Christopher is 6 years old.
How many years will it take until Gabriela is only 3 times as old as Christopher?
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How many years will it take until Gabriela is only 3 times as old as Christopher?
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Question 784986: Gabriela is 36 years old and Christopher is 6 years old.
How many years will it take until Gabriela is only 3 times as old as Christopher? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! gabriela 36 years
Christopher 6 years
let her be three times his age after n years
after n years gabriela' age = 36 +n
Christpher's age = 6+n
36+n = 3(6+n)
36+n=18+3n
-n
36+n-n=18+3n-n
36=18+2n
-18
36-18=18-18+2n
18=2n
/2
9=n
After 9 years
