Percents and Equations

By Ana Wilkowski

Whats This??

Percents and equations is where you use equations to find a whole, part, or a percent

Finding a Part

What is 20% of 25?

How do you find this? Well I'll tell you
First, you divide 100 by the percent
(100÷20=0.2)
Now that you know what that is, you multiply the whole by the number you just found.
n= 25×0.2
n=5


Finding a Percent

What percent is 25 is 5?

Well, How do you find THIS?
First, you divide 5 by 25  

25\5=0.2

Then you multiply 100 by 0.2

0.2*100=20

So your percent is 20.

Finding a whole

20% of what is 5?

20/5= 0.2

0.2*n= 5

n=24

25% of 20 is 5

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