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Mathematics, 18.11.2021 14:00 cupkakekawaii45

Two families go to a theatre. The Smith family of three adults and four children pay £57.
The Jones family of five adults and six children pay £90.
Work out the cost of an adult ticket and the cost of a child ticket.
In your working, let 'a' stand for an adult ticket and c'stand for a child ticket.
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Two families go to a theatre. The Smith family of three adults and four children pay £57.
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