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Anonymous Anonymous
  • 23-07-2014
  • Mathematics
Answered

Three of four numbers have a sum of 22. If the average of the four numbers is 8, what is the fourth number?

Verified Answer :

Ryan2
Ryan2 Ryan2
  • 17-08-2014

\(a+b+c=22\\ \\ \frac{a+b+c+x}{4}=8\\ \\ a+b+c+x=32\\ \\ 22+x=32\\ \\ \boxed{x=10}\)

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