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anonymous

  • 4 years ago

A man is currently 20yrs older than his oldest son. His oldest son is currently two yrs older than his youngest son. Three years from the current time, the product of the ages of the brothers will be ten more than eleven times the age of the father. What is the current age of the man's youngest son?

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  1. Hero
    • 4 years ago
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    f = o + 20 o = y + 2 (o+3)(y+3) = 11f + 10 y = ?

  2. anonymous
    • 4 years ago
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    f=0 or O?

  3. anonymous
    • 4 years ago
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    are these all one equation or different equations? I am trying to figure it out by substitute lol not working

  4. Hero
    • 4 years ago
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    Wait...

  5. anonymous
    • 4 years ago
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    okay

  6. Hero
    • 4 years ago
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    Actually, it is not solvable.

  7. anonymous
    • 4 years ago
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    why?

  8. anonymous
    • 4 years ago
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    it's the same kind of problem I was running into when trying to substitute

  9. Hero
    • 4 years ago
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    Well, if it's solveable, you'll have to use the quadratic formula to solve it

  10. anonymous
    • 4 years ago
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    with all your equal signs I can't tell if it's continous or just different equations not broken up

  11. Hero
    • 4 years ago
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    y^2 - 6y -246 = 0

  12. anonymous
    • 4 years ago
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    that looks better

  13. Hero
    • 4 years ago
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    There you go. Plug that into the quad form

  14. Hero
    • 4 years ago
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    Warning: The values will not be "even"

  15. anonymous
    • 4 years ago
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    it can be both 3+ squareroot of 1020/2 or 3-squareroot of 1020-2

  16. Hero
    • 4 years ago
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    If that is correct, you will need to round it

  17. Hero
    • 4 years ago
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    to decimal

  18. anonymous
    • 4 years ago
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    ugh

  19. Hero
    • 4 years ago
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    lol

  20. anonymous
    • 4 years ago
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    Thanks

  21. Hero
    • 4 years ago
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    What did you get?

  22. anonymous
    • 4 years ago
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    about 15.97

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spraguer (Moderator)
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