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1 March, 11:40

An amusement park sells adult tickets and children tickets, with adult tickets costing $5 and children's tickets costing $3 if Ed bought 15 tickets and spent a total of $57, how many children's tickets did he buy?

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Answers (2)
  1. 1 March, 12:53
    0
    The answer is D

    Step-by-step explanation:

    Ed spent $57 on 9 children's
  2. 1 March, 14:27
    0
    He buy 6 children tickets

    Step-by-step explanation:

    First we have to perform 2 equations, one indicating the number of tickets and the other the total amount

    x = Adult tickets

    y = Children tickets

    x + y = 15

    x * $5 + y * $3 = $57

    we clear the x from the first equations

    x + y = 15

    x = 15 - y

    we replace the value of x in the second equation with (15 - y) and solve

    x * $5 + y * $3 = $57

    (15 - y) * 5 + y * 3 = 57

    75 - 5y + 3y = 57

    -5y + 3y = 57 - 75

    -2y = - 18

    y = - 18/-2

    y = 9

    we replace y in the first equation

    x = 15 - y

    x = 15 - 9

    x = 6

    He buy 6 children tickets
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