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Mathematics, 18.05.2021 16:30 cocodemain
5 plates and 4 cups cost 21.20 dollars. 6 plates and 5 cups cost 25.70 dollars. Each plate costs the same amount as the other plates, and each cup costs the same amount as the other cups. What is the cost of 1 plate? What is the cost of 1 cup?
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5 plates and 4 cups cost 21.20 dollars. 6 plates and 5 cups cost 25.70 dollars. Each plate costs the...
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