What is the average of the integers from 15 to 40? Here we will show you how to calculate the average of the integers from 15 to 40.
To calculate the average of any set of numbers, you divide the sum of the numbers by the total numbers in the set (Sum/Total).
Therefore, to calculate the average of the integers from 15 to 40, we need to divide the sum of the integers from 15 and 40 by the total number of integers from 15 to 40. Here are step-by-step instructions:
Step 1) Calculate Sum of Numbers
First, we calculate the sum of all the integers (whole numbers) from 15 to 40 by using a formula where a is the low number of 15 and b is the high number of 40:
Sum = ((b - a + 1) ÷ 2) × (a + b)
Sum = ((40 - 15 + 1) ÷ 2) × (15 + 40)
Sum = (26 ÷ 2) × (55)
Sum = 13 × 55
Sum of Numbers = 715
Step 2) Calculate Total Number
Next, we calculate the total number of integers from 15 to 40. To calculate the total number of integers, we calculate the difference between 15 and 40 and then add 1. Here is the formula and the math. Once again, a is the low number of 15 and b is the high number of 40:
Total = b - a + 1
Total = 40 - 15 + 1
Total Number = 26
Step 3) Calculate the Average
Now we have both pieces needed to calculate the average of the integers from 15 to 40. We calculate the average of the integers by dividing the Sum of Numbers from Step 1 by the Total Number from Step 2. Here is the math and the answer:
Average = Sum of Numbers ÷ Total Number
Average = 715 ÷ 26
Average = 27.5
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