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Answer: Divide purity units by the number of units that represents 100% purity, then multiple by 100. The answer will be the percentage purity.
For example: If a piece of gold contains 18 units of gold and 100% pure gold is 24 units, then we can calculate the purity of the gold piece as follows: 18/24 = .75 * 100 = 75% purity.
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What is 2 and a half percent of 200?
The answer to two and a half percent is easy. Simply find one percent,double it to get two percent and then half one percent to find the half. Put them together and you have two and a half percent.
How do you find 35 percent of a number?
To find 35 percent of a number, you first convert 35 percent to a decimal by dividing it by 100, which gives you 0.35. Then, you multiply this decimal by the number you want to find 35 percent of. For example, to find 35 percent of 100, you would calculate 0.35 x 100 = 35. Therefore, 35 percent of 100 is 35.
How do you find part if you have whole and percent?
Part = Whole*Percent/100
Find 0.5 percent of 640?
0.5 percent of 640 = 0.16
What is 30 percent of 20 percent of 150 percent?
To find 30 percent of 20 percent of 150 percent, you first need to calculate 20 percent of 150 percent. To do this, you multiply 0.20 by 1.50, which equals 0.30. Next, you find 30 percent of 0.30 by multiplying 0.30 by 0.30, which equals 0.09. Therefore, 30 percent of 20 percent of 150 percent is 0.09.
