SOLUTION: Today Jack is twice as old as Jill. In ten years’ time Jack will be one and a half times as old as Jill. How old will Jack and Jill be in twenty years’ time?

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Question 894482: Today Jack is twice as old as Jill. In ten years’ time Jack will be one and a half times as old as Jill.
How old will Jack and Jill be in twenty years’ time?

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x for Jack
y for Jill

x%2Fy=2 and in ten years, %28x%2B10%29%2F%28y%2B10%29=1.5.

Solve the system:
highlight%28system%28x=2y%2C%28x%2B10%29=%283%2F2%29%28y%2B10%29%29%29

Once that is solved, you want to evaluate x+20 and y+20.