A group of adults plus one child attend a movie at Cineplex 15 tickets cost nine dollars for adults and six dollars for children the total c

Question

A group of adults plus one child attend a movie at Cineplex 15 tickets cost nine dollars for adults and six dollars for children the total cost for the movie $78 right and equation to find the number of adults in the group

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Jade 4 weeks 2021-09-26T00:43:22+00:00 1 Answer 0

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    2021-09-26T00:44:48+00:00

    Answer:

    There are 8 adults in the group.

    Step-by-step explanation:

    Let the number of adults in the group be ‘x’.

    Given:

    Number of children = 1

    Number of adults = ‘x’

    Cost for a ticket of adult = $9

    Cost for a ticket of a child = $6

    Total cost = $78

    Total cost is equal to total cost of tickets of ‘x’ adults plus cost of ticket of 1 child.

    Unit cost of 1 adult × Number of adults + cost of ticket of 1 child = Total cost

    Framing in equation form, we get:

    9x + 6 = 78

    Adding -6 on both sides, we get:

    9x=78-6\\\\9x=72

    Dividing both sides by 9, we get:

    x=\frac{72}{9}=8

    Therefore, there are 8 adults in the group.

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