17
17
If you mean 20% of 15 that's 3. If you mean 20% off that's 15-3 or 12.
13, 15, 17 and 19
10, 20, 15, 17, 13
17
15
20 - 15/100 * 20 20 - .15 * 20 20 - 3 $17
17
Add up all the numbers together and then divide by 12 to find the average mean:- 68/12 = 17/3 or as 5 and 2/3
13, 15, 17, 19
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
If you mean 20% of 15 that's 3. If you mean 20% off that's 15-3 or 12.
The median of {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20] is the 6th values which is 15.
13, 15, 17 and 19
10, 20, 15, 17, 13
If you mean -17 = 15n -20 then the value of n is 1/5