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For your problem you actually are multiplying 500 by a fraction. In this case, it's 30 over 100. You can reduce (simplify) that fraction to 3 over 10 by eliminating extra zeros in both the numerator (top number) and denominator (bottom number).
When you do percent problems it's useful to think in tenths. Here you have exactly three tenths.
Now, divide 500 into tenths = 50. You have three of them, so your answer would be 150.
Good luck as you progress in school and remember that finding tenths of a number is a very useful way to estimate or solve math problems.
CaptCanuck23
duh..150?...ever hear of a calculator?..ever been to school you moron?
LUIGI
=30/100 * 500
= .30 * 500 or 5 * 30
= 150
sligoman
150
Subinli111
Well, I think the best way to answer it is teaching you how to calculate percentages. It is easy. You simply multiply the percentual value you want to obtain by the "total" you already have (which is 500) and divide the result by 100 (then you obtain the per-centage, from the latin "centum" = one hundred). In your question, which we can use as an example it means:
30 X 500 = 15,000
15,000 / 100 = 150 / 1 (you eliminate two zeroes in each part) = 150.
That means 150 is equal to 30% of 500.
For simple values that are multiples of 10, 100, 1000, etc., you can even do the calculations mentally, being careful enough to count the zeroes, in order to obtain the correct result. Hope it has helped you!