SOLUTION: The mean of 4 numbers is x , the mean of the same 4 numbers and 73 is 9 , find x

Algebra ->  Average -> SOLUTION: The mean of 4 numbers is x , the mean of the same 4 numbers and 73 is 9 , find x      Log On


   

Question 274078: The mean of 4 numbers is x , the mean of the same 4 numbers and 73 is 9 , find x
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
The mean of 4 numbers is x , the mean of the same 4 numbers and 73 is 9 , find x
:
Let t = the total of the 4 numbers
then
t%2F4 = x
t = 4x
:
"the mean of the same 4 numbers and 73 is 9 "
%28t%2B73%29%2F5 = 9
t + 73 = 5(9)
t + 73 = 45
t = 74 - 73
t = -28
then
4x = -28
x = -7