Percents for instance? What's 30% of 100? How do percents work? This is really embarrassing.
2007-01-05 05:03:41 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The term "per cent" means "fraction of one hundred". So 30% of 100 is just 30. 45% of 100 is 45. That's the easy part.
You are interested usually in 30% of 80 or some other number besides 100. In this case, write the per cent as the decimal fraction of 100 that it represents: 30% = .30 This is now the multiplier you use. Think of the word "of" as "times".
So 30% of 80 is just .30 x 80 = 24. So 24 is 30% of 80.
Hope that helps you.
2007-01-05 05:12:04 · answer #1 · answered by grand_nanny 5 · 0⤊ 0⤋
"Per cent" means "Parts per hundred."
30 parts per hundred of 100 is - come on now, I believe in you!
Percents are very easy - you just multiply by the "decimal" version of the number.
Other examples:
10 percent of 100 = 0.10 *100 = 10
10 percent of 50 = 0.10* 50 = 5
110 percent of 50 = 1.10 *50 = 55
25 percent of 100 = 0.25 * 100 = 25
Give 30% of 100 a try now!
2007-01-05 05:10:21 · answer #2 · answered by jbtascam 5 · 0⤊ 0⤋
% means divided by 100
30%=30/100 or .3
I have known plenty. I remember in 1976 election night, NBC's anchor John Chancellor getting thoroughly confused by the concept of %. He was a college graduate & allegedly 1 of the countries premier broadcast journalists.
At least you have a lot of company.
2007-01-05 08:27:57 · answer #3 · answered by yupchagee 7 · 0⤊ 0⤋
my son is 21 and he doesn't know his math. And I am a math teacher, but he won't let me help.
2007-01-05 05:31:13 · answer #4 · answered by Ray 5 · 1⤊ 0⤋
my uncle owns a lawn mowing buisness and a few weeks ago he had to call me to ask me how to calculate area of a rectangle.....
2007-01-05 05:06:45 · answer #5 · answered by travis R 4 · 0⤊ 0⤋
hahahah...its fine. there are people like that everywhere. don't sweat it.
2007-01-05 05:12:30 · answer #6 · answered by bml14 3 · 0⤊ 0⤋