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A 200g alloy is made

A 200g alloy is made of copper and zinc. the number of copper atoms is 3 times that of zinc,a)calculate the number of copper and
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2. asked by nelson
3. 800 views
A piece of metal alloy (a solution of metals) is made of gold and silver. It is 20% by mass silver. An irregularly shaped piece
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2. asked by Mom
3. 713 views
Solve the problem. Anne and Nancy use a metal alloy that is 24.9% copper to make jewelry. How many ounces of a 20% alloy must be
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2. asked by mark
3. 670 views
Solve the problem. Anne and Nancy use a metal alloy that is 24.9% copper to make jewelry. How many ounces of a 20% alloy must be
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2. asked by Angela G
3. 878 views
anne and nancy use a metal alloy that is 19.3% copper to make jewelry. how many ounces of a 19% alloy must be mixed with a 20%
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2. asked by Anonymous
3. 940 views
Anne and Nancy use a metal alloy that is 20.45% copper to make jewelry. How many ounces of a 12% alloy must be mixed with a 25%
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2. asked by heather
3. 1,897 views
Anne and Nancy use a metal alloy that is 23.5% copper to make jewelry. How many ounces of a21% alloy must be mixed with a 30%
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2. asked by sakena
3. 1,816 views
Can you show work por favor? :)A metalworker has a metal alloy that is 20% copper and another alloy that is 60% copper. How many
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2. asked by Anon
3. 1,268 views
In 60 ounces of alloy for watch cases there are 20 ounces of gold.how much copper must be added to the alloy so that a watch
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2. asked by adiba
3. 601 views
An alloy is a mixture of metals. Suppose that certain alloy is made by mixing 300 grams of an alloy that contains 72% copper
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2. 91 views