SOLUTION: I have a 90 average, and the exam is worth 30%. What do I need to get on the exam to have a 92 average in the class?

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Question 873618: I have a 90 average, and the exam is worth 30%. What do I need to get on the exam to have a 92 average in the class?
Answer by ben720(159) About Me  (Show Source):
You can put this solution on YOUR website!
Assuming you've done everything except the exam,
70% credit + 30% credit = Final Grade
0.7%2890%29%2B0.3%28x%29=92
63%2B3x%2F10+=+92
Subtract 63
3x%2F10+=+29
Multiply by 10/3
x=96%2B2%2F3

You must get a 96⅔