Average of 2 Numbers: Find Equation Solution

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In summary, the equation for finding the average of two numbers is (x + y)/2, and it can be solved by plugging in the values for x and y and simplifying the equation. This equation is only applicable for finding the average of two numbers and cannot be used for non-numerical values or values with different units. The importance of finding the average of two numbers includes determining the midpoint, calculating a mean or average value, or finding the average of test scores.
  • #1
alextrainer
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If average of 11 numbers is 14 and average of the 9 of those numbers is 9, what is the average of the other 2 numbers?

Answer 36.5

9x9 = 81 - how do I write equation to figure out other 2 numbers without trial and error?
 
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  • #2
Hi alextrainer and welcome to MHB! :D

$$\frac{81+a+b}{11}=14$$

Can you continue with that?
 
  • #3
Thanks, I got it

a plus b = 154

154/2 = answer

thanks for the equation
 

FAQ: Average of 2 Numbers: Find Equation Solution

1. What is the equation for finding the average of two numbers?

The equation for finding the average of two numbers is (x + y)/2, where x and y are the two numbers being averaged.

2. How do I solve for the average of two numbers using the equation?

To solve for the average of two numbers, simply plug in the values for x and y into the equation (x + y)/2 and perform the necessary mathematical operations to simplify the equation.

3. Can this equation be used to find the average of more than two numbers?

No, this equation is specifically for finding the average of two numbers. To find the average of more than two numbers, you would need to use a different equation or algorithm.

4. What is the importance of finding the average of two numbers?

Finding the average of two numbers is important for various reasons, such as determining the midpoint between two values, calculating a mean or average value for a set of data points, or finding the average of two test scores.

5. Are there any limitations or restrictions when using this equation to find the average of two numbers?

Yes, this equation can only be used for finding the average of numerical values. It cannot be used for finding the average of non-numerical values or values with different units (e.g. kilograms and meters).

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