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20 May, 08:40

A jazz concert brought in$113,000 on the sale of 7,200 tickets. If the tickets sold for $10 and $20 each, how many of each type of ticket were sold?

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  1. 20 May, 12:02
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    We'll make $10 x and the $20 y.

    x + y = 7,200

    10x + 20y = 113000

    10x + 10y = 72000

    10x + 20y = 113000

    10y = 41,000

    y = 4,100

    Substitute y = 4,100

    x + y = 7,200

    x + 4,100 = 7,200

    x = 7,200 - 4,100

    x = 3,100

    3,100 x $10 tickets

    4,100 x $20 tickets
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