Add them together, divide that total by three
Find out
43
Mean = Total of the numbers / n So total of the numbers = n*mean
18, 27, 45
Add them together, divide that total by three
The mean times three will be the total of all three numbers. Multiply the mean times three and subtract the sum of the two numbers from that total.
Find out
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The three consecutive whole numbers you are looking for are 1, 2, and 3. The sum of the first two numbers, 1 + 2 = 3.
Multiply 11 by 18 and multiply that total by successive counting numbers.
45
first find the area of the base. then multiply it by the height and divide it by three.
43
How do you find the first three common multiples of sets of numbers
Find the LCM of the first two numbers and then find the LCM of that number and the third one. That answer will be the LCM of all three.
Mean = Total of the numbers / n So total of the numbers = n*mean