(9 + 15)/(-5 + 1) = 24/-4 = -6.
The sum of the first 5 numbers is 15. 1+2+3+4+5=15
1/15 because: 10+5=15 or 15/1 15/1 flipped is 1/15
15
The arithmetic mean of a set of numbers are the sum of the numbers in the set, divided by the amount of numbers in the set. If the numbers in a set were to be 1, 2, 3, 4, and 5, the sum would be 1+2+3+4+5=15/5=3.
1.6
The sum of the first 5 numbers is 15. 1+2+3+4+5=15
1/15 because: 10+5=15 or 15/1 15/1 flipped is 1/15
15
17/15 divided by 5 = (22/15) / 5 = 22/75
The arithmetic mean of a set of numbers are the sum of the numbers in the set, divided by the amount of numbers in the set. If the numbers in a set were to be 1, 2, 3, 4, and 5, the sum would be 1+2+3+4+5=15/5=3.
0.3333
Five divided by one third = 15/1 or 15
in my head right now im thinking 5 and 1. 5x1=5 15x1=15 15 divided by 15=1 5 divided by 5=1
-18
9/1 divided by 3/5 = 9/1 X 5/3 = 3/1 X 5/1 = 15/1 = 15!
1+1+1+1+1+=5 * * * * * The question did not ask for the sum of the first counting number five times! The sum of the first 5 counting numbers is 1+2+3+4+5 = 15. Such sums are known as triangular numbers.
The mean is the sum of the three numbers divided by 3.So in this case the sum is 30 and 30 divided by 3 is 10.10 is the mean and the median too