I have class average of 85.74.

i got 63 in final which 15 of the class .
what will be my my overall class average .
Thank you in advance.

Your question makes no sense. "15 of the class"?????

Please clarify and repost.

My final is 15 percent of total class .

85.74..all class average
63 ____final final percent of class.

85 * 85.74 = 7287.9

15 * 63 = 945

(945 + 7287.9) / 100 = 82.33%

63 (final score) ____15 percent of class.

To calculate your overall class average after receiving a score of 63 on the final exam, you'll need to consider the weight of your final exam score in relation to your class average. Since you mentioned that the final exam is worth 15% of your overall class grade, we can use this information to calculate the overall average.

First, let's determine how much the final exam score contributes to your final average. If the final exam is worth 15% of the overall grade, this means that the remaining 85% is based on your previous performance throughout the class.

To calculate your overall class average, you can use the following formula:

Overall Class Average = (Previous Class Average x (100% - Weight of Final Exam)) + (Final Exam Score x Weight of Final Exam)

In this case, the previous class average is 85.74, the weight of the final exam is 15%, and the final exam score is 63.

Using the given information, we can substitute the values into the formula:

Overall Class Average = (85.74 x (100% - 15%)) + (63 x 15%)

Simplifying the equation:

Overall Class Average = (85.74 x 85%) + (63 x 15%)

Next, let's calculate the numerical values:

Overall Class Average = (72.8889) + (9.45)
Overall Class Average = 82.3389

Therefore, your overall class average would be approximately 82.34 after receiving a score of 63 on the final exam.