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Mathematics, 27.03.2020 23:29 giouamado
A school wants to buy some new desks and chairs. If it buys 40 desks and 100 chairs, the total cost is $1100; if it buys 50 desks and 80 chairs, the total cost is $1150. What is the price of a desk and a chair?
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A school wants to buy some new desks and chairs. If it buys 40 desks and 100 chairs, the total cost...
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