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3 years ago

14

A metal alloy weighing 10 kg and containing 13% copper is melted and mixed with 4 kg of a different alloy which contains 83% cop

per. What percent of the resulting alloy is copper?

1 answer:

Vinil7 [7]3 years ago

4 0

Answer:

33%

Step-by-step explanation:

(13*10)+(83*4)=(14*x)

130+332=14x

462=14x

x=33

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