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# My final exam is worth 20% of my final grade ... Need help finding my average.?

My English exam is worth 20% of my final grade, so if im going into it with a 72 what will I need to make on my exam to at least keep it at a 70? What will be the least i can make thanks ...

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- Potato chips :3Lv 78 years ago
Current grade = 72 = 80% of final grade

Exam = X = 20% of final grade

72 * 0.8 = 57.6 (this is your current grade and if you get 0 on exam)

70 is passing score I'm guessing, so you'd need 12.4 more points.

so work backwards

12.4 / 0.2 = 62

You would need a 62 to get that 12.4 points to pass at a 70.

Source(s): I exempted all my final exams as a senior, aren't I awesome? Yeah I know I am. - 4 years ago
Get the best possible marks/aspects/grades you would get in that exam, divide it by way of a hundred and then multiply that with the aid of 20. For illustration, complete quantity in the exam is 62/a hundred = 0.Sixty two zero.62 x 20 = 12.4% of total points/marks

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