SOLUTION: In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Erica has scored 94
94
, 89
89
, and 76
76
on the fir
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Question 1133371: In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Erica has scored 94
94
, 89
89
, and 76
76
on the first three. What range of scores on the fourth test will give Erica a C for the semester (an average between 70
70
and 79
79
, inclusive)? Assume that all test scores have a non-negative value.
Express your answer in interval notation.
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
--------------
Erica has scored 94
94
, 89
89
, and 76
76
on the first three.
-------------
Say like this:
Erica has scored 94, 89, and 76 on the first three.
Her average of FOUR scores if #4 is score x, would be .
--
Grade for C is between 70 and 79 inclusive.
Would this make sense for the minimum score?
Okay
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