12. Find the fifth number in this set so that the mean is {3, 9, 2, 1, x}

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter9: Sequences, Probability And Counting Theory
Section: Chapter Questions
Problem 39RE: How many subsets does the set 1,3,5,...,99 have?
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12. Find the fifth number in this set so that the mean is 4.
{ 3, 9, 2, 1, x}
Transcribed Image Text:12. Find the fifth number in this set so that the mean is 4. { 3, 9, 2, 1, x}
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