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irinina [24]
3 years ago
6

If the mean if these numbers is 9 what is x ? 16,3,x,5

Mathematics
1 answer:
siniylev [52]3 years ago
5 0
The mean is the average number meaning that it is all the numbers in a set added together and divided by how many number are in the set. In this case there are 4 numbers (16, 3, whatever number x is, and 5). So, to find out what x is, first you multiple 4 by the known mean which is 9.
4 x 9 = 36
Then you simply subtract 36 from all the known numbers to find x.
36 - 16 - 5 - 3 = 12
So x = 12
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