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7 March, 06:55

On a certain hot summer's day, 529 people used the public swimming pool. The daily prices are $1.75 for children and $2.25 for adults. The receipts for admission totaled $1118.75. How many children and how many adults swam at the public pool that day?

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  1. 7 March, 06:59
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    {a+c=529

    {1.75c+2.25a=1118.75

    {9a+9c=4761

    -

    {7c+9a=4475

    2c=286

    c=143

    a=529-143=386

    There are 143 children and 386 adults used the public swimming pool.
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