SOLUTION: John is 8 years old and his sister katrina is 26 years old.after how many years will katrina be twice as old as her brother john?

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Question 1122022: John is 8 years old and his sister katrina is 26 years old.after how many years will katrina be twice as old as her brother john?
Found 2 solutions by greenestamps, josgarithmetic:
Answer by greenestamps(13198) About Me  (Show Source):
You can put this solution on YOUR website!


The difference in their ages is 18 years; it will always be 18 years.

Since the difference in their ages will always be 18 years, what will their ages be when Katrina is twice as old as John?

Since their ages now are 8 and 26, how many years will it be until Katrina is twice as old as John?

Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
After x years 2%28j%2Bx%29=k%2Bx
2%288%2Bx%29=26%2Bx
16%2B2x=26%2Bx
highlight%28x=10%29