Mathematics, 18.07.2020 03:01 maybaby9625
In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Lisa has scored 87 , 86 , and 74 on the first three. What range of scores on the fourth test will give Lisa a C for the semester (an average between 70 and 79 , inclusive)? Assume that all test scores have a non-negative value. Write your answer in interval notation.
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In a class in which the final course grade depends entirely on the average of four equally weighted...
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