Mathematics, 25.10.2019 21:43 sammi90nicole
Robert knows from reading his syllabus in intermediate algebra that the average of his chapter tests accounts for of his overall course grade. he also knows that the final exam counts as of his grade.
(a) suppose that the average of robert's chapter tests is . determine the range of grades that he would need on his final exam to get an "a" in the class. (assume that a grade of "a" is obtained if robert's overall average is or better.) robert would need or better on his final exam.
(b) determine the range of grades that robert would need on his final exam to get a "b" in the class. (assume that a grade of "b" is obtained if robert's overall average is at least but less than .) robert will receive a "b" in the class if he scores at least and less than on his final exam.
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Robert knows from reading his syllabus in intermediate algebra that the average of his chapter tests...
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