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Math Help - Age problem

  1. #1
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    Age problem

    ^^ THANKS FOR THE ANSWERS

    HOW ABOUT THIS ONE.......

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    ♣ Marilyn is three years younger than her friend Rosie. In seven years the product of their ages will be 5 more than thrice the product of their ages five years ago. How old are each at present?

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    thank you very much! (million times)
    Last edited by Hi888; September 20th 2006 at 07:13 AM.
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  2. #2
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    Quote Originally Posted by Hi888 View Post
    ^^ THANKS FOR THE ANSWERS

    HOW ABOUT THIS ONE.......

    __________________________________________________ __

    ♣ Marilyn is three years younger than her friend Rosie. In seven years the product of their ages will be 5 more than thrice the product of their ages five years ago. How old are each at present?

    __________________________________________________ _


    thank you very much! (million times)
    Say Marilyn is now x years old

    Then Rosie is now x + 3 years old

    In seven years Marilyn will be x + 7 years old

    Rosie will be x + 10 years old

    Five years ago Marilyn was x - 5 years old

    Rosie was x - 2 years old

    So solve (x + 7)(x + 10) = 3(x - 5)(x - 2) + 5

    Multiply it out first and simplify
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    Quote Originally Posted by Hi888 View Post
    Thanks
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    Quote Originally Posted by ThePerfectHacker View Post
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  6. #6
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    When you ask a question and it's answered you don't need to erase it, or edit it. Keep it there so people can see the whole thread and if you have a new question post a new thread
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