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math

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how do i do this math problem ? what is my age ? add my age , plus half of it , plus a third of it , plus 3 times three . the results is 6 score and ten , what is my age ?

  • math -

    just start putting the words into symbols. If your age is a,

    (a + a/2 + a/3 + 3)*3 = 6*20+10
    (11/6 a + 3)*3 = 130
    11/2 a +9 = 130
    11/2 a = 121
    a/2 = 11
    a = 22

  • math -

    Bill is twice as old as Sue. Jim is four years older than Sue. Together their ages add up to 12 years.

  • math -

    Twice Brayton's age increased by 5 resuts in 49

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