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2 April, 13:18

Two families go to a zoo. the smith family of two adults and three chidren pays £61 the jones family of three adults and five children pay £96. work out the price of an adult and child ticket, let a stand for adults and c stand for child

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  1. 2 April, 15:15
    0
    Adult would be 17.00 and child would be 9.00
  2. 2 April, 15:31
    +1
    2a+3c=61

    2a=61-3c

    a=30.5-1.5c

    ...

    3a+5c=96, using a found above we get:

    3 (30.5-1.5c) + 5c=96

    91.5-4.5c+5c=96

    91.5+0.5c=96

    0.5c=4.5

    c=9, and since a=30.5-1.5c

    a=17

    So adult tickets cost £17.00 and child tickets cost £9.00
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