document.write( "Question 874345: If I am getting a 78% in my class and my final is worth 10% of my grade, what do I need to get on the final to get at least an 80%? \n" ); document.write( "

Algebra.Com's Answer #527463 by ben720(159) $\"\"$ $\"About$

You can put this solution on YOUR website!
The function for an average is:
\n" ); document.write( "(sum of terms)/(number of terms)
\n" ); document.write( "Because everything else is worth 9 units, compared to 10%,
\n" ); document.write( "(9*78+x)/10=80
\n" ); document.write( "Multiply both sides by 10
\n" ); document.write( "9*78+x=800
\n" ); document.write( "702+x=800
\n" ); document.write( "Subtract 702 from both sides
\n" ); document.write( "x=98
\n" ); document.write( "

You'll have to get 98% on the final

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