Posted by **Jessie** on Monday, October 22, 2012 at 9:33am.

How do you find the percentage of a number?

I have no clue how you do that.

An example I have is 850 students are attending a camp, 38% of them play musical instruments. What number of people play instruments?

I dont get how to solve that and here's another example.

18 is what % of 225. I don't know how you'd solve that either.

please help.

- Math -
**Steve**, Monday, October 22, 2012 at 10:20am
to get a handle on things, work with simpler numbers.

Surely you know what 50% means. Half, right? So, what % of 2 is 1? You know it's 50%, so what do you have to do to get that?

You need to know that 50% = 0.50 (divide % by 100 to get decimal equivalent)

So, using just 1 and 2, how do you get 0.5? 1/2, right?

so, if A is some 20% of B, you need A/B = 0.20

If you wan to know what % A is of B, just divide A/B and make that a % by multiplying by 100.

So, what % is 5 of 10?

5/10 = 0.50 = 50%

what % is 18 of 225?

18/225 = 0.08 = 8%

what is 38% of 850?

"of" usually means you multiply.

1/2 of 10 is 1/2 * 10 = 5

38% = 0.38

so, 38% of 850 = 0.38 * 850 = 323

## Answer this Question

## Related Questions

- Math 1 - write an equation that represents the following situation. Let x= the ...
- Math (Combinatorics) - 40 students attended the brilliant summer camp at ...
- iloj - The number of students attending the fall play was 150 more than the ...
- math - There were 3 times as many adults as students attending a school play. If...
- algebra 1 - the number of students attending the Fall play was 150 more than the...
- algebra - The number of students attending the fall play was 150 more than the ...
- music - what is a percusion insrument Percussion instruments are played by being...
- Math - Use the following information to determine the number of people in each ...
- probability - For each 100 8th grade girls in a certain middle school, 85 play ...
- Algebra - For each 100 8th grade girls in a certain middle school, 85 play ...