I am trying to figure out how to do my math. We are finding percents and it says pre algerbra. The question is what is 20% of 10.

I am trying to figure out how to do my math. We are finding percents and it says pre algerbra. The question is what is 20% of 10.

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David L. | Chemistry TutorChemistry Tutor

You can think of the percent as the part you're interested in divided by the whole, times 100.

percent = (part/whole) x 100

This isn't particularly useful, except for the fraction, "part/whole", which is important because you can use it to solve problems like these.

For 20% , the fraction is 20/100. It's 20 parts out of a whole hundred. You could use an equivalent fraction (e.g., 2/10 or 1/5), but 20/100 is convenient and doesn't take much thought. 20% is 20 parts out of 100, so "20/100".

So, using 20/100 as derived from the percent, we have:

10 x (20/100) = **2**

Sylvia M. | Middle School Math and Science Grades (4-8)Middle School Math and Science Grades (4...

Every percent can be changed into a decimal or fraction. The problem 20% **
of** 10 is a multiplication problem because you want something of something.
**Note: 20% = 0.20 = 20/100 = 1/5**

**0.20 x 10 = 2 revisit the rule for multiplying decimal or**

**20/ 100 x 10 / 1 = 200/100 = 2 revisit the rule for multiplying fractions or
**

**diagram 10 divided into 5 parts which have 2 in each equal part.**

To solve this problem you set up a ratio. We read the question as: "what is 20 percent of 10?" The ratio looks like the following:

20/100 = x/10

Next, you cross multiply:

20*10 = 100*x

this gives us:

100x = 200

dividing both sides by 100 we get

x=2

Thus, 2 is 20% of 10.

Simple English: (how to work out a percentage of something).

100% means everything. I put in 100% when I ran a race. I put in everything when I ran a race.

To work out a percentage of anything you need to first divide the number by 100.

So if you had to work out 20% of 10 you would take 20 and divide it by 100.

Then you would times it by 10 which gives you the answer of 2.

Teresa C. | Caring, patient, & professional Caring, patient, & professional

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