What three numbers have an average of 719?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 719. This means if we add these three numbers together and divide by 3, we should get 719.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 719 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 719 * 3 = x + y + z
- So, the sum of our three numbers should be: 2157
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2157.
Solution 1:
719, 719, 719
Verification:
(719 + 719 + 719) / 3 = 2157 / 3 ≈ 719
This solution is correct!
Solution 2:
719, 719, 719
Verification:
(719 + 719 + 719) / 3 = 2157 / 3 ≈ 719
This solution is correct!
Solution 3:
87, 893, 1177
Verification:
(87 + 893 + 1177) / 3 = 2157 / 3 ≈ 719
This solution is correct!
Solution 4:
1239, 395, 523
Verification:
(1239 + 395 + 523) / 3 = 2157 / 3 ≈ 719
This solution is correct!
Solution 5:
1015, 917, 225
Verification:
(1015 + 917 + 225) / 3 = 2157 / 3 ≈ 719
This solution is correct!
Explanation:
As you can see, there are many possible solutions. We can find more by:
- Choosing any two numbers
- Subtracting their sum from 2157 to get the third number
Remember:
- The numbers don't have to be whole numbers.
- They can even be negative (although that might not make sense in some real-world contexts).
- The order of the numbers doesn't matter for the average.