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What construction does the image below demonstrate? (1 point)
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Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?
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Solve this system of equations. 12x − 18y = 27 4x − 6y = 10
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What construction does the image below demonstrate? (1 point)...
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