document.write( "Question 932195: if I have an 80% in my math class, and the final is worth 25% of my grade. what do I need to get on the final to keep my grade at a B? \n" ); document.write( "

Algebra.Com's Answer #566041 by TimothyLamb(4379) $\"\"$ $\"About$

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assume that B is 80% to 90% inclusive:
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\n" ); document.write( "75*80 + 25x = 100*80
\n" ); document.write( "25x = 100*80 - 75*80
\n" ); document.write( "x = ( 100*80 - 75*80 ) / 25
\n" ); document.write( "x = 80
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\n" ); document.write( "answer:
\n" ); document.write( "you need 80% or better on the final
\n" ); document.write( "---
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