document.write( "Question 754386: I have a 75% in my math class (overall score) and my final is worth 20% of that. To pass my class i need a 70%. what grade do i have to get on my final to pass the class? \n" ); document.write( "
Algebra.Com's Answer #459045 by Alan3354(69443)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Do it like this one.
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\n" ); document.write( "I have and 87% as my average grade in math. Finals are worth 15%. How much would I need to score to get at least an 80% as my average in math?
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\n" ); document.write( "The 87% is 85% of your grade.
\n" ); document.write( "F = grade on Final (or test)
\n" ); document.write( "87*85 + F*15 = 100*80
\n" ); document.write( "F = (8000 - 7395)/15
\n" ); document.write( "F = 40.33%
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