SOLUTION: Jim has grades of 84, 65, and 76 on three math tests. What grade must he obtain on the next test to have an average of exactly 80 for the four tests? A. 87 B. 95 C. 85

Algebra ->  Average -> SOLUTION: Jim has grades of 84, 65, and 76 on three math tests. What grade must he obtain on the next test to have an average of exactly 80 for the four tests? A. 87 B. 95 C. 85       Log On


   

Question 612567: Jim has grades of 84, 65, and 76 on three math tests. What grade must he obtain on the next test to have an average of exactly 80 for the four tests?
A. 87
B. 95
C. 85
D. 92
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


If he is to have an average of 80 on 4 tests, then the sum of all 4 tests must equal 4 times 80.

John

My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism