the mean of 8 numbers is 14 . if seven number are 12 ,13 ,17 ,19 ,21 5 ,5 find the eighth number
please answer fast my test is going on
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Answer:
x=20
Step-by-step explanation:
8=12+13+17+19+21+5+5+x/14
112=92+x
112-92=x
20=x
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