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Kryger [21]
3 years ago
5

The average (arithmetic mean) of 12, 25, and x is 21. What is the value of x?

Mathematics
1 answer:
Dominik [7]3 years ago
4 0
The answer is 26, the average is found by adding all the numbers and dividing by how there are. you are given 2 sets (25,12) and need to find X, the average should be 21. 25+12 is 37, 37+(c) which is 26 = 63 , you then divide 63 by how many numbers you had , which is 3 and the answer is 21.
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