Add them together and divide by 4 (the number of percentages you had in the first place) It's just like averaging plain numbers
When you put together unequal groups you only add. Is he correct?
When you add two (or any number of) numbers together, the result is called the sum.
20
you add them together then add them by two
Add the 2 percentages together, then divide by 2.
Yes add the 4 percentages together then divide them by 4 to obtain the average percentage
Add them together and divide by 4 (the number of percentages you had in the first place) It's just like averaging plain numbers
They are called sums of percentages!
24.5%+20.3%
This is more complicated than it first appears. You cannot simply add percentages together - you need to know what they are percentages out of. So if you have x% being a out of b so that x = 100*a/b and y% being c out of d so that y = 100*c/d Then the sum of the percentages is 100*(a+c)/(b+d). The clearest way to see that you cannot simply add up the percentages is, if you get a 50% score in one exam and a 50% score in another, you do NOT get 100% in the two exams combined!
Since percentages are based on a common denominator of 100, they are easier to add and subtract.
10.115%. To find the average, add the 2 individual percentages together, then divide the sum by the number of original percentages in the equation. 7.98% + 12.25% = 20.23% 20.23% divided by 2 = 10.115%
you add them as fraticon and then turn it into a percentage
To do this, you need to either make the other number a percentage or make your percantage a decimal. It is the same principal when adding anything. For example, you can add 2y and 5y together to get 7y. However, you can't add 2y and 5x. The answer would just be 2y + 5x.
Add the total of the percentages toegether then divide it by the number of results.
The same as you would spell the number, except that you add "percent" at the end.