Final answer:
To determine the final exam score a student needs for their desired semester grade, the quarter and final exam weights are used to set up an equation which is then solved for the final exam score.
Step-by-step explanation:
To calculate what a student needs on their final exam to achieve a desired semester grade, we need to consider the weights of their quarter grades and the final exam. Usually, the final exam has a different weighting compared to the quarter grades. For instance, if each quarter grade accounts for 40% of the semester grade and the final exam accounts for 20%, and a student scored 80% in the first quarter and 90% in the second quarter and wants an overall grade of 85%, we can set up an equation to solve for the final exam score (E).
0.40(80) + 0.40(90) + 0.20(E) = 85
Now, let's calculate:
32 + 36 + 0.20(E) = 85
This simplifies to:
0.20(E) = 85 - 68
0.20(E) = 17
Finally, we find the exam grade needed:
E = 17 / 0.20
E = 85
Therefore, the student would need to score 85% on their final exam to achieve a semester grade of 85%.
Make sure that you fully understand all of the concepts presented and study for this quiz as though it were going to be proctored in a classroom, or you will likely find yourself running out of time. Keep track of the time, and be sure to look over your full quiz results after you have submitted it for a grade.