Question 557290: i took a basic life support class 60% of my grade was demonstration 20% is quizzes and 20% is final. i got a 92 in my finals and 73.4 in quizzes then the other 60% where it stands and how do i calculate my final grade with this information.
Answer by bucky(2189)   (Show Source):
You can put this solution on YOUR website! I presume your quizzes and final are done for since you have those scores.
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Here's how to figure your final grade:
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Since your average score on your quizzes was 73.4 and it comprises 20% of your grade, multiply 20% (or rather its decimal equivalent of 0.2) times 73.4. The answer is 14.68. That means your quizzes will contribute 14.68 points to your final grade.
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Next your average score in your finals was 92. Multiply that by the 20% (or 0.2) that it contributes to your final grade. 92 times 0.2 = 18.40 points. So your finals contribute 18.40 points to your final grade.
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This being the case you have earned a total of 14.68 plus 18.40 points of your final grade. This total is 33.08 points.
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Now you need the average score on your demonstrations. If you think your average score on your demonstrations will be 100, multiply that by 60% (or 0.6) and that will give you 60.00 points. Adding this to the 33.08 points you have already accumulated from quizzes and the finals will result in a final grade score of 93.08.
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Similarly, if you think that you will average 90 points on your demonstrations, multiply 90 times 0.6 and you get 54.00 points to to add to the 33.08 you have accumulated so far, and that will result in a final grade of 87.08.
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This should be enough to give you the idea of how to compute your final grade in the course once you know the average score you got on your demonstrations.
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I hope this helps you. Obviously scoring well on your demos would really be a big benefit to you. Good luck and best wishes for your success.
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