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An adult ticket to a museum costs $3 more than a children's ticket when 200 adult tickets and 100 children's tickets are sold the total revenue is $2100.what is the cost of a children's ticket?
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An adult ticket to a museum costs $3 more than a children's ticket when 200 adult tickets and 100 children's tickets are sold the total revenue is $2100.what is the cost of a children's ticket?

User Amfcosta
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y: cost of a children's ticket
x: cost of a adult's ticket


200x+100y=2100
x-y=3
and then just solve it, i think

User Brandon Davis
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