Question

find the average of the first 20 negative numbers​

Answer 1

Hello !!

Your question ask for we to find the average of the first twenty negative numbers. To you solve easily it, you can just make use of this formula below.

Average = (A1 + A2 ... + An)/n

Now, you only put the information of the statement in the formula, develop and find the result.

Average = [(-20) + (-19) ... + (-1)]/20

Average = [-210]/20

Average = -10.5

Therefore, the average is -10.5.

I hope I have collaborated !

Answer 2

The average of the first 20 negative numbers​ is -10.5

Step-by-step explanation:

First 20 negative numbers = -1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,16,-17,-18,-19,-20

$Average = \frac{\text{Sum of first 20 negative numbers}}{20}$

$Average = \frac{-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20}{20}$

$Average = \frac{-210}{20}$

$Average = -10.5$

Hence the average of the first 20 negative numbers​ is -10.5

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