SOLUTION: A student took seven test. After the sixth test his average was an 82. If your average was a 80.5 after the seventh test. What did you score on the seventh test.
Algebra ->
Average
-> SOLUTION: A student took seven test. After the sixth test his average was an 82. If your average was a 80.5 after the seventh test. What did you score on the seventh test.
Log On
Question 959235: A student took seven test. After the sixth test his average was an 82. If your average was a 80.5 after the seventh test. What did you score on the seventh test. Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! After 6 tests his average was 82, so the sum of his scores was (6)(82)=492
If his average was 80.5 after 7 tests, the sum of his scores was (7)(80.5)=563.5
563.5-492=71.5 ANSWER: his score on the seventh test was 71.5.
