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29 November, 10:05

At the movie theatre, child admission is $5.30 and adult admission is $8.40. On Wednesday, three times as many adult tickets as child tickets were sold, for a

total sales of $1189.50. How many child tickets were sold that day?

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  1. 29 November, 13:07
    0
    39

    Step-by-step explanation:

    Let x = number of child tickets sold.

    Cost of x child tickets is x * 5.30 = 5.3x.

    "three times as many adult tickets as child tickets were sold"

    Number of adult tickets sold: 3x

    Cost of 3x adult tickets is 3x * 8.40 = 25.2x

    Cost of all tickets is 5.3x + 25.2x = 30.5x

    Cost of all tickets is $1189.50

    30.5x = 1189.5

    x = 1189.5/30.5

    x = 39

    Answer: 39
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