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A student's grade in a course is the average of 4 test grades and a final exam that is worth three times as much as each test. Suppose a student has test grades of 90, 88, 81, and 94. Write an equation to model this situation where x is the student's grade on the final exam and y is the student's average for the course.
9 years ago

Answers

bobpursley
AVG=(90+88+81+94+3x)/7

9 years ago

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