SOLUTION: How many 75%(c) grades does it take to bribg a zero up to a C(>70%)

Question 892267: How many 75%(c) grades does it take to bribg a zero up to a C(>70%)
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
If all grades count the same (for example, if the grades are for quizzes given equal value for the average), after a zero, 75%(c) grades would bring the average percentage grade to
%
for a 70.00%, we need .
Solving that equation:
--> --> --> --> --> --> .
In practice, 75%(c) grades would do,
because a 69.50% would be rounded to 70%, and the equation would be
--> --> --> --> --> --> .
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