document.write( "Question 1024778: mean average of 60 on 8 exams is needed to pass a course. On her first 7 ​exams, Sheryl received grades of 47, 72, 71, 59, 70, 73 and 58. \n" ); document.write( "
Algebra.Com's Answer #640149 by FrankM(1040)\"\" \"About 
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The 8 grades must add to 8*60 = 480\r
\n" ); document.write( "\n" ); document.write( "47, 72, 71, 59, 70, 73 and 58 add to 450. \r
\n" ); document.write( "\n" ); document.write( "30 gets her the 60 average.
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