Did I do this math wrong? Percentages of my grade

Posted on 2014-03-29 06:27:00 in Math by FAWN

Okay so the 3rd quarter of school ended today and my biology teacher hasn't upgraded my grade yet. I only did about 100 points of a 260 point assignment categorized under Homework, and I want to see how that will effect my grade. Okay so all of these facts are my grades WITHOUT the assignment graded yet.



I have an 87.87% in the class. Homework is 20% of my overall grade, tests are 50%, labs are 20%, and participation is 10%. I have 450 points out of 510 in Homework, or 88.23%~ 96.54 out of 120 in Tests, or 80.45%~ 10 out of 10 in Labs, or 100%~ and 10 out of 10 in Participation, or 100%.



Then I did the math to find out what percentage I would have in the Homework catagory if those 100points out of 260 were added, and I got the result that my Homework grade will drop to a 71.43%, and my overall grade will only drop to an 84.5%. Is this correct? It seems too good to be true, in my opinion. If anyone can please do the math and tell me if they ended up with the same percentages or different ones I would be VERY grateful. Thanks!! :D

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