Question 934528: Tests count for 50% of my average grade, quizzes count as 25% of my average, and homework counts as 12.5% of my average. If I made a 98 and a 72 on two separate tests, a 94 on a quiz, and two 100's for two homework assignments, what is my average?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
the sum of the weights must be 100%:
50 + 25 + 12.5 = 87.5%
there's a missing 12.5% weight, so let's add teacher's helper worth 12.5%
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the new problem statement:
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Tests count for 50% of my average grade, quizzes count as 25% of my average, homework counts as 12.5% of my average, and teacher's helper counts as 12.5% of my average. If I made a 98 and a 72 on two separate tests, a 94 on a quiz, two 100's for two homework assignments, and 85 for teacher's helper, what is my average?
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answer:
((98 + 72)/2)*0.50 + 94*0.25 + ((100 + 100)/2)*0.125 + 85*0.125 = 89.125%
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