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12 June, 18:12

When Mr. J. Raff took his two children to the zoo, their tickets cost $8.75. The next family in line was Mrs. Ella Fant with Grandpa and the five Fant kids. Their tickets cost a total of $19.75. How much does the zoo charge for each adult and for each child?

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  1. 12 June, 20:13
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    A + 2K = 8.75

    2A + 5K = 19.75

    Change the first expression so that we can subtract the As

    2A + 5K = 19.75

    2A+4K = 17.50

    If the signs are the same, subtract one expression from another

    K = 2.25

    substitute K into any expression to get A

    A+4.50 = 8.75

    Subtract 4.50

    a=4.25

    K=$2.50

    A = $4.25
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