document.write( "Question 286204: How many questions can I miss if there are 68 questions on my test and the test counts for 80% of my grade. \r
\n" ); document.write( "\n" ); document.write( "Note: My GPA in the class is 88.9%. Anything below an 80 is failing (nursing course)\r
\n" ); document.write( "\n" ); document.write( "***I want to know how many questions i can miss to keep an 80% average for my class.***
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Algebra.Com's Answer #207538 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Each question on the test will count for \"1%2F68\" of 80% of your grade
\n" ); document.write( "\"1%2F68+=+.014706\"
\n" ); document.write( "\".014706%2A80+=+1.176\" (in percent)
\n" ); document.write( "88.9% of the remaining 20% of your grade is \".889%2A20+=+17.78\" (in percent)
\n" ); document.write( "Let \"n\" = number of questions you must answer CORRECTLY to
\n" ); document.write( "get a grade of 80% from the course
\n" ); document.write( "\"1.176n+%2B+17.78+=+80\"
\n" ); document.write( "\"1.176n+=+80+-+17.78\"
\n" ); document.write( "\"1.176n+=+62.22\"
\n" ); document.write( "\"n+=+52.91\", or 53 out of 68, so you can miss 15 questions
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