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Mathematics 9 Online
OpenStudy (anonymous):

Medal How many kilograms of nickel silver containing 18% zinc and how many kilograms of nickel silver containing 29% zinc must be melted together to produce 710 kg of a new nickel silver containing 20% zinc? Treat the percents given in this exercise as exact numbers, and work to three significant digits. ? kg of 18% alloy and ? kg of 29% alloy

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