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200 tickets for a concert are sold for a totalof £720 tickets cost £5 for adults and £3 for children how many tickets of each type are sold?

User Drarkayl
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1 Answer

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Answer:

  • 60 adult tickets
  • 140 children's tickets

Explanation:

Let "a" represent the number of adult tickets sold. Then the total revenue is ...

5a +3(200-a) = 720

2a +600 = 720 . . . . . . simplify

2a = 120 . . . . . . . . . . . . subtract 600

a = 60 . . . . . . . . number of adult tickets sold

200-a = 140 . . . number of tickets for children sold

User Thomas Fritsch
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