Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Find
x
x
x
if 5, 9, 11, 12, 13, 14, 17, and
x
x
x
have a mean of 12.
Browse the problem library