10%+30%=40%
Wiki User
∙ 11y agoTo find the percent of anything, you change the percent to a decimal, and multiply. Finding the percent of a sum is no different. ex: 10% of (30 + 100) I can use the distributive property to take 10% of 30, then add 10% of 100. .10(30 + 100) = .10*30 + .10*100 = 3 + 10 = 13 In order to see how this works, let's not distribute. .10(30+100) and instead, add 30 +100 first, then take the percent. .10(130) = 13 We get the same answer! You can take the percent of the whole thing, or you can take the percent of the pieces that add up to the whole.
40
30 add 60 is 90 percent. 10 percent left. 10 percent is 20p. 100 percent is 2 pounds
Multiply 30 by the decimal form of 10 percent which is .10. 30 x .10 = 3, so 10 percent of 30 is 3.
33% * * * * * No, that is 10% added to 30. 10% of 30 is 30*10/100 = 3
10% + 10% = 20%
It is as simple as doing this on a calculator. 162.16 X 1.1 =178.376. To add 10 % multiply by 1.1. To add 30%, 1.3. 125%, 2.25. See the pattern? The percent divided by 100 plus one.
30% of 84 is 25.20 10% is 8.40
10% of 30% = 0.03 or 3%
600*10/100*30/100 = 18
30 percent = 0.3 or 3/10
300%= 10% of 30= 10%/100% * 30= 0.1 * 30= 3percentage of 3 = 3 * 100% = 300%