SOLUTION: . Simple question but big one on average age.sth like a, b, c weighted separately 1st a, b, c ,then a& b, then b &c ,then c & a at last abc, the last weight was 167,then what will

Algebra ->  Triangles -> SOLUTION: . Simple question but big one on average age.sth like a, b, c weighted separately 1st a, b, c ,then a& b, then b &c ,then c & a at last abc, the last weight was 167,then what will       Log On


   



Question 465564: . Simple question but big one on average age.sth like a, b, c weighted separately 1st a, b, c ,then a& b, then b &c ,then c & a at last abc, the last weight was 167,then what will be the average weight of the 7 reading?
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
If a,b,c combined weigh 167, we can find the average weight of the seven readings. Note that we are trying to find



We can collect like terms in the numerator: