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19 May, 21:29

The price for admission for concert was $9 for adults and $4 for children all together 1770 tickets were sold in the resulting revenue is $14,680 and how many children attended the concert?

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  1. 19 May, 21:56
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    X+y=1770

    9x+4y=14680

    x=1770-y

    9 (1770-y) + 4y=14680

    15930-9y+4y=14680

    -5y=-1250

    5y=1250

    y=1250/5

    y=250

    children attended=250
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