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Mathematics, 08.11.2019 14:31 tenleywood

At a concert. 3 adult and 4 child tickets cost £23. 1 adult and 5 child tickets cost£15. cost of adult ticket £? cost of a child ticket£?


At a concert. 3 adult and 4 child tickets cost £23. 1 adult and 5 child tickets cost£15. cost of adu

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