The alloy is composed of gold and silver. In a piece of alloy 120g. Of gold, which is one-sixth of its mass.
| June 19, 2021 | education
The alloy is composed of gold and silver. In a piece of alloy 120g. Of gold, which is one-sixth of its mass. What is the mass of the entire piece of alloy? How many inverse problems can you compose for a given one? Write them down
We find the mass of the entire piece of alloy.
To do this, we divide the known weight of gold in the alloy by the indicated part.
120 / 1/6 = 120 * 6/1 = 720 grams.
Questions to the inverse problem.
1) How many grams of silver is in the alloy.
720 – 120 = 600 grams.
2) How many grams of silver in the alloy is more than gold.
600 – 120 = 480 grams.
3) Determine the concentration of gold and silver in the alloy:
120/720 * 100% = 16 2/3% (gold content).
600/720 * 100% = 83 1/3% (silver content).
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