Problema Solution
A students grade in a course is the average of 4 test grades and a final exam that is worth twice as much as each test. Suppose a student has test grades of 91, 82, 83 and 92. Write an equation to model this situation where x is the students grade on the final exam and Y is the students average for the course.
Answer provided by our tutors
the equation would be Y = (91 + 82 + 83 + 92 + x + x)/6
which simplifies to
Y = (348 + 2x)/6
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