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29 January, 20:46

The Jurassic Zoo charges $14 for each adult admission and $9 for each child. The total bill for the 214 people from a school trip was $2081. How many adults and how many children went to the zoo?

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  1. 29 January, 21:12
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    a=adult

    c=child

    a+c=214

    c=214-a

    9c+14a=2081

    9 (214-a) + 14a=2081

    1926-9a+14a=2081

    5a=155

    a=155/5=31

    31 adults

    183 children

    check

    31*14 = 434

    183*9=1647

    1647+434=2081
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