3 years ago

an alloy contains copper and zinc in the ratio 7:3. how much zinc should be added to 35kg of copper when making the alloy?

Mathematics

2 answers:

Darina [25.2K]3 years ago

7 0

Answer:

copper: zinc

7:3

copper =35kg

zinc=35×3/7

zinc=5×3=15kg

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Makovka662 [10]3 years ago

7 0

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an alloy contains copper and zinc in the ratio 7:3. how much zinc should be added to 35kg of copper when making the alloy?​

an alloy contains copper and zinc in the ratio 7:3. how much zinc should be added to 35kg of copper when making the alloy?