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Figuring out your grades

  1. Apr 26, 2005 #1
    let's say i had 90% on my exams, worth a total of 30%. Also, on hw i have a total of 85% which is worth a total of 40%. i want to know what i need to get on the final if the final is worth 30% of my grades? 90% is an A in the class.

    (.30)*(.90) + (.40)*(.85) + x = .90

    i thought it would be something like that, but it doesnt seem correct
  2. jcsd
  3. Apr 26, 2005 #2

    James R

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    You should have:

    (.30)*(.90) + (.40)*(.85) + (.30)*x = .90

    Which means x = 0.97
  4. Apr 26, 2005 #3
    i forgot the .30 somehow, thanks
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