document.write( "Question 1056568: A student averaged 77% on his first five exams in physiology. He averaged 74% on his first four exams. What scores did he earn on his fifth exam? Can the student raise his average go 80% by doing well on the sixth exam? Show your work. \n" ); document.write( "

Algebra.Com's Answer #671776 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"%28A%2BB%2BC%2BD%2BE%29%2F5=77\"$
\n" ); document.write( "2. $\"%28A%2BB%2BC%2BD%29%2F4=74\"$
\n" ); document.write( "From 1,
\n" ); document.write( " $\"A%2BB%2BC%2BD%2BE=385\"$
\n" ); document.write( "and from 2,
\n" ); document.write( " $\"A%2BB%2BC%2BD=296\"$
\n" ); document.write( "Subtracting,
\n" ); document.write( " $\"%28A%2BB%2BC%2BD%2BE%29%2B%28A%2BB%2BC%2BD%29=385-296\"$
\n" ); document.write( " $\"E=89\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"%28A%2BB%2BC%2BD%2BE%2BF%29%2F6=80\"$
\n" ); document.write( " $\"A%2BB%2BD%2BC%2BD%2BE%2BF=480\"$
\n" ); document.write( " $\"385%2BF=480\"$
\n" ); document.write( " $\"F=95\"$
\n" ); document.write( "Yes, the student needs a 95.
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