What is 20% of 60???

2009-06-16 3:27 pm

回答 (10)

2009-06-16 3:35 pm
✔ 最佳答案
0.2 x 60 = 12
2009-06-16 10:43 pm
= 20%(60)
= 0.2(60)
= 12

Answer: 12
2009-06-16 10:30 pm
20% of 60
= 60 X 20/100
= 12

QED
2009-06-16 11:41 pm
100%<----------->60
10%<------------->6
20%<------------->12
2009-06-16 10:46 pm
20/100 * 60
= 1/5 * 60
= 12
2009-06-16 10:35 pm
60 x 20%
= 60 x 20/100
= 60 x 1/5
= 60/5
= 12
2009-06-16 10:34 pm
20% is .2 as a decimal. The word "of" means to multiply, so:
.2*60=12 (answer)

You could also do this the long way. Check out my Math Variety blog posts on how to solve percentage problems. You’ll find a step-by-step method on how to do these problems, practice problems, and solutions. .
http://mathvariety.blogspot.com/2009/04/percentage-problems.html
http://mathvariety.blogspot.com/2009/05/percentage-problems-practice-problems.html
http://mathvariety.blogspot.com/2009/05/percentage-problems-solutions-to.html

I also have an eHow article on this topic at http://www.ehow.com/how_4816051_solve-percentage-problems.html if you want to read it.

Start with x/100=is/of. Here, x=20 (percent), is=unknown ("what is"), of=60 ("of 60"). We have:
20/100=is/60

Cross multiply:
20*60=100*is
1,200=100*is
is=12 (same answer)
2009-06-16 10:32 pm
all u have to do is: 60*20/100 = 12
2009-06-16 10:31 pm
Just convert it to math
What = x
is = =
20% = .20
60 = 60

x=.20(60)
x=12

It works the other way too, for example:

5 is what percent of 72

5=x(72)
5/72=x
0.069=x
or 6.9%=x
2009-06-16 10:31 pm
20%= 0.2
so then just multiply 60 by 0.2
60 * 0.2 = 12
and there you have it


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