SOLUTION: Two Years ago, a boy was 5/4 as old as his sister, In 13 years he will be 10/9 as old as his sister. How Old is the boy?

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Question 984157: Two Years ago, a boy was 5/4 as old as his sister, In 13 years he will be 10/9 as old as his sister. How Old is the boy?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
x, the sister
y, the boy

system%28y-2=%285%2F4%29%28x-2%29%2Cy%2B13=%2810%2F9%29%28x%2B13%29%29
Goal is solve for y.



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