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29 November, 02:05

Jery sells children's tickets for half the adult ticket price. if 5 adult tickets and 8 childrens tickets cost a total of $27, what is the cost of an adult ticket?

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  1. 29 November, 02:41
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    We can calculate it by listing 2 equations

    let x be children ticket price and y be adults

    x = y/2. (1)

    8x + 5y = 27 (2)

    from (1), sub 1 into 2

    8 (y/2) + 5y = 27

    4y + 5y = 27

    9y = 27

    y = 3

    using y = 3 we can go back to (1) and calculate x, but since y is already adult ticket, so we don't necessarily have to.

    therefore adult ticket cost $3 each
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