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Artemon [7]
3 years ago
10

How many tickets were sold on Sunday? Thanks

Mathematics
1 answer:
Butoxors [25]3 years ago
3 0
The answer is 210 children tickets were sold . if you multiply the first equation by 7  it would be 7x+7y=2590. then subtract equation 2 from 1 you will have 4x=840 so x=210. Also you can use substitution method.
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