document.write( "Question 541843: if i have a 81 in a class and my exam is worth 20% what do i need to make to keep my 80 \n" ); document.write( "

Algebra.Com's Answer #354317 by solver91311(24713) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "This is a weighted average problem. If 20% of your grade is the exam, then the 81 average you have already must be 80% of your grade. You don't know the grade you are going to get on your exam, so let

represent that number:\r
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\n" ); document.write( "\n" ); document.write( "Just solve for

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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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$\"The$

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