If an alloy requires copper, nickel, and zinc in a ratio of 12:5:3, how many kilograms of each metal are needed to make 5 kg of the alloy?
12+5+3 = 20
5/20 = 1/4
12:5:3 * 1/4 = 3 : 5/4 : 3/4
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3:5/4:3/4
HOPE YOU FIND THIS HELPFUL
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Answer: copper=3kg zinc=3/4kg Nickel= 5/4kg