Marley A.

asked • 05/14/21# Grade Calculator Help

I had 6 tests worth 50%

I got 84,80,76,76,76,74

I had one exam worth 5%

I got 22/30

what do I need to get on my final exam worth 25% to maintain at or above 76%

And how many questions can I miss?

the exam is 100 questions and the questions are worth 1.5 points each.

## 1 Expert Answer

William W. answered • 05/15/21

Top Prealgebra Tutor

The average of your tests is 77.667 and applying the weighting factor of 0.5 (50%) these are worth 38.83 toward your final grade (77.667•0.5 = 38.83)

The Exam 22/30 is 73.33% and applying the weighting factor of 0.05 (5%) it is worth 3.667 toward your final grade (73.333•0.05 = 3.667)

Your final score is "x" and applying the weighting factor of 0.25 (25%) it is worth 0.25x toward your final grade

Since you only have 80% of the possible score accounted for, you can take your desired 76 and multiply it by 0.80 (80%) to get the desired total of 60.8.

Adding these together gives:

38.83 + 3.67 + 0.25x = 60.8

0.25x = 60.8 - 38.83 - 3.67

0.25x = 18.3

x = 73.2

So you need a 73.2% on your final. Since the final is worth 150 points, you must get a score of 110/150 (which would actually give you a 73.3%).

If you get no partial credit of=n anything, it means you can miss 26 questions. If you did that, you would actually have a 74% for your final exam score.

But all that said, let me give you some advice, study as hard as you possibly can and try to get a 100% on your final. That is a much better plan.

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William W.

You only list 80% of your grade. (50% for tests, 5% for exam, and 25% for the final)05/14/21