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23 April, 12:09

If movie tickets were $5.50 for a child's ticket and $9.20 for an adult ticket, if 149 tickets were sold, with a total of $1137.70, how many tickets sold were adult tickets?

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  1. 23 April, 12:28
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    The number of adult ticket = 86

    Step-by-step explanation:

    Let the number of adult tickets be x

    The number of child ticket = 149 - x

    x*9.20 + (149-x) * 5.50 = $1137.70

    9.2x + 149*5.5 - 5.5x = 1137.70

    3.7x + 819.5 = 1137.70

    3.7x = 1137.70 - 819.50

    3.7x = 318.2

    x = 318.2/3.7

    x = 86

    The number of adult ticket = 86

    The number of child ticket = 149 - 86 = 63
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