SOLUTION: Desmond has test scores of 100, 82, 78, and 84. what does he need to score on his next test so that he has an average test score of 85? a)81 b)82 c)85 d)90

Algebra ->  Average -> SOLUTION: Desmond has test scores of 100, 82, 78, and 84. what does he need to score on his next test so that he has an average test score of 85? a)81 b)82 c)85 d)90      Log On


   



Question 1029426: Desmond has test scores of 100, 82, 78, and 84. what does he need to score on his next test so that he has an average test score of 85?
a)81
b)82
c)85
d)90

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28100%2B82%2B78%2B84%2BT%29%2F5=85
344%2BT=425
Solve for T.