Math

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Mckenzie's age is 3 years less than 4 times Alec's age. Lily is 1 year less than Mckenzie. If Alec is 2, how old is Lily?

  • Math -

    m = 4 a - 3
    so
    m = 4 (2) - 3
    m = 8 - 3
    m = 5
    then
    L = m-1
    L = 4

  • Math -

    You did not have to ask me because you could have checked your answer of 4 easily.
    Just use 4 for lily and go back to the text of the question.
    If Lily is 4 then McK must be 5
    If McK is 5 then McK +3 is 8 which is four times Alec so Alec must be 2. Sure enough, that is right.

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