document.write( "Question 1095098: Twelve students took a math exam and obtained an average score of 80%. If four students received an A grade (a score of 90% or above), then what was the minimum possible percentage mean score of the other students? \n" ); document.write( "
Algebra.Com's Answer #709641 by josmiceli(19441)\"\" \"About 
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Let \"+S+\" = the sum of the scores of the 12 students
\n" ); document.write( "\"+80+=+S%2F12+\"
\n" ); document.write( "\"+S+=+960+\"
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\n" ); document.write( "The smallest possible score of the other students ( not A's )
\n" ); document.write( "happens when each of the A students gets 100%
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\n" ); document.write( "\"+4%2A100+=+400+\"
\n" ); document.write( "and
\n" ); document.write( "\"+960+-+400+=+560+\"
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\n" ); document.write( "So, there are \"+12+-+4+=+8+\" students who didn't get A's and
\n" ); document.write( "Let \"+x+\" = their minimum possible mean % score
\n" ); document.write( "\"+x+=+560+%2F+8+\"
\n" ); document.write( "\"+x+=+70+\"
\n" ); document.write( "70% is the answer
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\n" ); document.write( "Get a 2nd opinion if needed\r
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