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1 May, 15:13

At the city museum, child admission is $6.40 and adult admission is $9.60. On Tuesday, 160 tickets were sold for a total sales of $1305.60. How many adult tickets were sold that day?

numbers of adult tickets

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  1. 1 May, 17:21
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    X = children

    Y = adult

    6.40x + 9.60y = 1305.60

    x + y = 160

    x=160-y

    6.40 (160-y) + 9.60y = 1305.60

    1024 + 6.40y + 9.60y = 1305.60

    1024 = 3.2y = 1305.60

    3.2y = 281.6

    Y = 281.6/3.2 = 88

    So 88 adult tickets were sold

    Double check now

    X = 160-y

    X=160-88 = 72

    6.40 x 72 = 460.80

    9.60 x 88 = 844.80

    844.80 + 460.80 = 1305.60 this checks

    88 + 72 = 160 this checks
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