SOLUTION: ten years ago, a person was half as old as he is now. How old is he now?
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Question 170756: ten years ago, a person was half as old as he is now. How old is he now?
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
lets call the person p
:
p-10=1/2(p) multiply by 2
:
2p-20=p
:
current age
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