SOLUTION: To receive a C grade, a student must average more than 77 but less than or equal to 85. If Noah received a C in the course and had five grades of 75 , 79 , 74 , 68 , a

Algebra ->  Average -> SOLUTION: To receive a C grade, a student must average more than 77 but less than or equal to 85. If Noah received a C in the course and had five grades of 75 , 79 , 74 , 68 , a      Log On


   



Question 1065662: To receive a C grade, a student must average more than
77 but less than or equal to
85. If Noah received a C in the course and had five grades of
75
,
79
,
74
,
68
,
and
85 before taking the final exam, what were the possible grades for his final if there were
100 points possible? (Assume all six grades are weighted equally and let
x represent the unknown score.)

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
77%3CA%3C=85
77%3C%28%2875%2B79%2B74%2B68%2B85%2Bx%29%2F6%29%3C=85
462%3C381%2Bx%3C=510
81%3Cx%3C=129
Given the constraints,
81%3Cx%3C=100