What is the average of 20 and -10?

What is the average of 11 and 9?

11+9=20 20/2=10 average:10

What is the average of 10 20 and 30?

Well, honey, if you add 10, 20, and 30 together, you get 60. Then, to find the average, you divide that sum by the number of values, which in this case is 3. So, the average of 10, 20, and 30 is 20. And that's the tea, darling.

How do you use number line to calculate the average of two different averages?

You cannot. It should be their weighted average with the weights representing the number of observations in each average.For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...You cannot. It should be their weighted average with the weights representing the number of observations in each average.For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...You cannot. It should be their weighted average with the weights representing the number of observations in each average.For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...You cannot. It should be their weighted average with the weights representing the number of observations in each average.For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...

What is the average of 5 10 13 20?

The average is 12.

What is a mean number?

A mean is an average An example 10 +20 +30 =60 The mean/average of this is 20

What does it mean to have 20 10 vision?

Having 20/10 vision means you can see at 20 feet what a person with normal vision can see at 10 feet. It indicates better than average vision and means you have sharper visual acuity.

What number is halfway between -20 and 10?

The halfway point between two numbers is found by calculating the average of the two numbers. In this case, the average of -20 and 10 is (-20 + 10) / 2 = -10 / 2 = -5. Therefore, the number halfway between -20 and 10 is -5.

What is the average of 6 10 56 8?

Average = (6 + 10 + 56 + 8)/4 = 20

What is the difference between 45 and the average of 20 35 45 and 20?

The average equals 30. So 10

What is the average mean for -20 -20 -10 10 15 20 30 25 20 10 8 -20?

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

What is the average of two number is 10?

Assuming mean average: average = sum/number_of_items → 10 = sum/2 → sum = 10 x 2 = 20 So any two numbers with a sum of 10 have a mean average of 10, eg {5, 15}, {1, 19}, {0, 20}, {-5, 25}, etc. With the median average, for two numbers it is exactly the same as the mean average, so any pair of numbers that sum to 20 will do. With the mode average, only the case of the pair of numbers {10, 10} will suffice.

The average of two numbers is 10 What is the sum of the two numbers?

Avreage = Sum/number of values So 10 = sum/2 Multiply both sides by 2: 20 = sum