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Elanso [62]
3 years ago
5

What is the average (arithmetic mean) of all the multiples of ten from 10 to 190 inclusive?

Mathematics
1 answer:
Tema [17]3 years ago
5 0
You've got 19 numbers. Their sum is 10(1+2+3+...+19) or 10*\frac{20*19}{2}. Divide that by 19, to get \frac{10*20}{2}=100
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