SOLUTION: Mary collected donations from 5 people. Four of the people donated $5, $8, $10 and $12. How much did the fifth person donate if the average donation was $9.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Mary collected donations from 5 people. Four of the people donated $5, $8, $10 and $12. How much did the fifth person donate if the average donation was $9.      Log On


   

Question 1020840: Mary collected donations from 5 people. Four of the people donated $5, $8, $10 and $12. How much did the fifth person donate if the average donation was $9.
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
If the average donation of 5 people
is $9
Then the total collected was
$9 x 5 = $45
Adding up the donations for
the first 4 people = $35
$45 - $35 = $10
Fifth person put in $10
Hope this helps :-)