SOLUTION: If I have 90% going into the exam and it is worth 20% what do I have to get in the exam to score 85% overall

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Question 983487: If I have 90% going into the exam and it is worth 20% what do I have to get in the exam to score 85% overall
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
Your current 90% is 80% of your overall grade.
Let F=score on final
.
%280.80%29%2890%29%2B%280.20%29%28F%29=85
0.20F=13
F=65
ANSWER: You must score at least 65% on the final to have an 85% average overall.