algebra

A movie theater has 400 seats. Tickets at the theater cost $8 for students, $10 for adults, and $7 for senior citizens. On a night when all the seats were sold, the theater made $3,535 from ticket sales. If the number of adult tickets sold was 10 less than the number of student and senior tickets combined, how many senior tickets were sold?

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  1. If there are s students, a adults, and g geezers, then

    s+a+g = 400
    8s+10a+7g = 3535
    a = s+g-10

    Now just solve for the numbers

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  2. 57

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  3. Reese read twice as many pages Saturday night than she read Sunday night. If she read a total of 78 pages over the weekend, how many pages did Reese read Sunday night?

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  4. 36

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  5. 55

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  6. The answer is $4,000

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