The mass of an alloy of aluminum and silver in the alloy is 95: 5. How many grams of aluminum

| September 25, 2021 | education

The mass of an alloy of aluminum and silver in the alloy is 95: 5. How many grams of aluminum is contained in an alloy weighing 20 grams? How many grams of silver is contained in an alloy weighing 60 grams?

Let’s calculate how many grams of aluminum are contained in an alloy weighing 20 grams. Let’s make the proportion:

20 grams – 100%,

x gram – 95%.

x grams = 20 grams * 95%% 100% = 19 grams.

The alloy weighing 20 grams contains 19 grams of aluminum.

Let’s calculate how many grams of silver are contained in the alloy 60 grams. Let’s make the proportion:

60 grams – 100%,

x gram – 5%.

x grams = 60 grams * 5%: 100% = 3 grams.

The alloy weighing 60 grams contains 3 grams of silver.

Answer: the first alloy contains 19 grams of aluminum, the second – 3 grams of silver.



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