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14-04-2014
Mathematics

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Jacob Is Twice as old as Sue. The sum of their ages is 69 years. How old is Jacob?

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Аноним Аноним

14-04-2014

[tex]x-Sue\\2x-Jacob\\\\x+2x=69\\\\3x=69\ \ /:3\\\\x=69:3\\\\x=23-Sue\\\\2x=2\cdot23=46-Jacob\\\\Answer:Jacob\ is\ 46.[/tex]

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