Homework Help: Algebra

Posted by Maria on Tuesday, December 14, 2010 at 6:35pm.

How do I find the value of x such that the data set has the given mean.
Example: 11,12,5,3,x;
Mean=7.4

Algebra - qwerty123, Tuesday, December 14, 2010 at 6:37pm
sum=(7.4)5=37. 37-11-12-5-3=x=6.
Algebra - Jen, Wednesday, December 15, 2010 at 12:11am
(11+12+5+3+x)/5=7.4
31+x/5=7.4
Multiply both sides by 5
31+x=37
x=6

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