Aluminum is 80% alloy, the rest is copper. aluminum in the alloy is 300 grams more than copper

| January 31, 2021 | education

Aluminum is 80% alloy, the rest is copper. aluminum in the alloy is 300 grams more than copper, what is the mass of the alloy?

1) Determine the content in% in the copper alloy.
To do this, subtract the aluminum content in it (80%) from the total mass of the alloy (100%).
100% – 80% = 20% – in copper alloy.
2). Finds the difference in percentage in an alloy of aluminum and copper.
80% – 20% = 60% – 60% more aluminum than copper.
According to the problem, the difference in the mass of aluminum and copper in the alloy is 300 grams.
This means that the mass of 60% of the alloy = 300 grams (g).
3). We find the mass of 1 gram of the alloy. For this, the mass of 300 grams of the alloy is divided by 60%.
300 g: 60% = 5 g (grams) – weight of 1% alloy.
4). Find the total mass of the alloy (100%).
5 g 100% = 500 g (grams) is the total weight of the alloy.
Answer: the mass of the alloy is 500 grams.



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