Geometry

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a movie theater sells tickets for $9.00 each. Senior citizens receive a discount of $3.00. One evening the theater sold 636 tickets and took in $4974 in revenue. How many tickets were sold to senior citizens? [Hint: subtract the potential answer.]

A. 386
B. 77
C. 250
D. 559

im confused... how do u solve this? please help

  • Geometry -

    let the number of adult tickets be a
    let the numb of senior tickets be s
    a+s = 636 ,
    so a = 636 - s

    also,
    9a + 6s = 4974
    9(636-s) + 6s = 4974
    5724 - 9s + 6s = 4974
    -3s = -750
    s = 250

  • Geometry -

    OMG!!!! THANK YOU SOOOOO MUCH!!!!
    i WAS SO LOST IT WASN'T EVEN FUNNY!!!

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