Question

suppose an examiner give you different mixtures and ask you to differentiate between salts and compounds. What are methods you want to identify mixtures. Answer as long as 10marks ​

Answer 1

Answer:

13 × 100 = 13

Thus getting 13%.

The more difficult task comes when you need to know a percentage when you are given numbers that don’t fit so neatly into 100.

Most of the time, you will be given a percentage of a given number. For example, you may know that 40 percent of your paycheck will go to taxes and you want to find out how much money that is. To calculate the percentage of a specific number, you first convert the percentage number to a decimal.

This process is the reverse of what you did earlier. You divide your percentage by 100. So, 40% would be 40 divided by 100 or .40.

40 ÷ 100 = .40

Once you have the decimal version of your percentage, simply multiply it by the given number. In this case, the amount of your paycheck. If your paycheck is $750, you would multiply 750 by .40.

750 × .40 = 300

Explanation: