The average height of 8 adults is 1.8 m. What is the sum of their heights? How do I work this out without a calculator?

1 answer:

5 0

Well, the average of a sum of number is found by adding each given number and dividing that number by the amount of given numbers.
Example: 5+4+3+8=20
and 20/4 = 5, the average of the numbers
Multiply 1.8 by 8.0 using this format:

1.8
x8.0
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Hope this helped

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