SOLUTION: Can I please have help? Each student listed in the table has taken 3 math tests.Find the score each student needs on the next test in order to have an 80 average. Bill- 78 7

Algebra ->  Average -> SOLUTION: Can I please have help? Each student listed in the table has taken 3 math tests.Find the score each student needs on the next test in order to have an 80 average. Bill- 78 7      Log On


   

Question 743548: Can I please have help?
Each student listed in the table has taken 3 math tests.Find the score each student needs on the next test in order to have an 80 average.
Bill- 78 78 78
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(78+78+78+x)/4=80
234+x=80*4
x=320-234
x=86