SOLUTION: a total of 50 juniors and seniors were given a mathematics test. the 35 juniors attained an average score of 80 while the 15 seniors attained an average of 70. what was the average

Algebra ->  Average -> SOLUTION: a total of 50 juniors and seniors were given a mathematics test. the 35 juniors attained an average score of 80 while the 15 seniors attained an average of 70. what was the average      Log On


   

Question 47983: a total of 50 juniors and seniors were given a mathematics test. the 35 juniors attained an average score of 80 while the 15 seniors attained an average of 70. what was the average score for all 50 students?
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
(35*80+15*70)/50=(2800+1050)/50 OR 3850/50=77 FOR THE AVERAGE SCORE OF ALL 50 STUDENTS.