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23 May, 17:52

At the city museum, child admission is $5.30 and adult admission is $9.40. On Tuesday, 140 tickets were sold for a total sales of $1086.40. How many child tickets were sold that day?

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Answers (2)
  1. 23 May, 18:11
    0
    Total tickets sold = # of kid's tickets sold + # of adult tickets sold

    Total money made = amount of money kid's tickets raised + amount the adult tickets made

    These can be rephrased as

    140 = k + a

    and

    $1086.40 = $5.30k + $9.40a

    Rephrase the first;

    140 = k + a

    a = 140 - k

    Plug the equation into the first;

    1086.4 = 5.3k + 9.4a

    1086.4 = 5.3k + 9.4 (140 - k)

    1086.4 = 5.3k + 1316 - 9.4k

    -229.6 = - 4.1k

    k = 56 tickets
  2. 23 May, 21:03
    0
    I would think it is 86 im not sure if i did the math correctly let me go check hold on
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