We have been given that a jeweler has 5 rings, each weighing 12 g, made of an alloy of 20% silver and 80% gold.
Upon melting all 5 rings, the weight of the material will be 12*5=60 grams.
We have been given that the alloy contains 20% silver and 80% gold. Further, let us assume that x grams of silver are added to the melted material so that it has 64% gold and 36% silver.
Therefore, we can set up an equation:

Therefore, we get an equation:


Therefore, 15 grams of silver must be added to the melted material in order to reduce the gold content to 64%.
it's 96 inches around and 2 inches wide
Answer:
cylinder volume= 1005.30965cm²
rectangular prism volume= 384cm²
total volume: 1005.30965+384= 1389.31cm²
Answer:
24 is 75% of 32
Step-by-step explanation:
To get the percent in decimal form we divide 24 by 32
24 ÷ 32 = 0.75
To get the decimal into a percent we multiply it by 100
0.75 × 100 = 75
Answer:
+10 units
Step-by-step explanation: