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Adult tickets for a play cost $19 and child tickets cost $17. If there were 36 people at a performance and the theatre collected $646 from ticket sales, how many children attended the play?

  • math -

    Let a = adults and c = children.

    a + c = 36 total attendance, then
    a = 36 - c

    19a + 17c = $646 total ticket sales

    Substitute (36-c) for a in the second equation and solve for c.

    I'll let you do the calculations.

  • math -

    C=19

  • math -

    Which expression shows the cost of one adult

    admission ticket and 9 thrill ride tickets?

    A $15 + (9 × $3)

    B $12 + (9 × $3)

    C $15 + (9 + $3)

    D ($15 × 9) + $3

  • math -

    b

  • math -

    42

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