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16 June, 21:19

Tickets for Adults were $14.50 and tickets for Children were $9.00. We purchased 12 tickets and spent a total of $135.50 to get into the aquarium. How many adult tickets and student tickets did we purchase?

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  1. 16 June, 22:51
    0
    children tickets = 7

    adult tickets = 5

    a+c=135.5

    14.5+c=135.5

    14.5x7=72.5

    135.5-72.5 = 63

    c=63
  2. 16 June, 23:27
    0
    (5, 7)

    Step-by-step explanation:

    let a = the number of adult tickets

    let c = the number of children tickets

    then we have to solve the following system

    a + c = 12

    14.5a + 9c = 135.5

    we proceed by Substitution:

    c = 12 - a

    14.5a + 9c = 135.5

    After some calculations we find

    a=5 and c=7
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