document.write( "Question 879361: I have 91% in the class and my final is 80 questions and worth 15% of my grade what percentage on the final do I have to get to maintain a 80% in the class \n" ); document.write( "
Algebra.Com's Answer #530728 by JulietG(1812)\"\" \"About 
You can put this solution on YOUR website!
You need an average of 80 in the class.
\n" ); document.write( "Let's say there are 2000 points in the class (that makes it easy because then your final is worth 300 and there are 1700 points already earned.)
\n" ); document.write( "You have already earned .91 * 1700, or 1547 points.
\n" ); document.write( "You need .80 * 2000, or 1600 points.
\n" ); document.write( "That means, you only need 53 points out of 300 on the final, or 17\"2%2F3\"%. Breathe easy! 15 questions correct will put you over.
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