<PRE><B>Question 1200683</B>
A friend has a 85% average before the final exam for a course. That score includes everything but the final, which counts for 15% of the course grade.

What is the best course grade your friend can earn?
If he get 100% on the final:
Avg = (85*85 + 15*100)/100 = 87.25%
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What is the minimum score would your friend need on the final to earn a 75% for the course?
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85*85 + 15*S = 7500
S = 15
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