SOLUTION: Kristine is 4 years younger than Mario. 3 years from now she will be two thirds as old as Mario. Find their present age.

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Question 773000: Kristine is 4 years younger than Mario. 3 years from now she will be two thirds as old as Mario. Find their present age.
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Kristine is 4 years younger than Mario. 3 years from now she will be two thirds as old as Mario. Find their present age.
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let x=Kristine's present age
x+4=Mario's present age
3 yrs from now:
x+3=Kristine's age
x+4+3=x+7=Mario's age
..
x%2B3=%282%2F3%29%28x%2B7%29
3x+9=2x+14
x=5
x+4=9
Kristine's present age=5
Mario's present age=9