Algebra

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1 adult + 2 kids: admission = 8.75
2 adults + 5 kids: adm = 19.75

I have the answer, just need the formula - I guessed and checked (a lot) and got kids' tickets = 2.25
adults' tickets = 4.25

  • Algebra -

    a + 2k = 875 (1)
    2a + 5k = 1975 (2)

    from (1) a = 875-2k
    sub into (2)
    2(875-2k) + 5k = 1975
    1750 - 4k + 5k = 1975
    k = 225
    then a = 875-450
    a = 425

  • Algebra -

    thanks

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