document.write( "Question 11186: a student has test grades of75 and82. What must he get on a thrid test to have a average of80 or higher? \n" ); document.write( "
Algebra.Com's Answer #5834 by longjonsilver(2297)\"\" \"About 
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let third exam score = x. So,\r
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\n" ); document.write( "\n" ); document.write( "\"%2875%2B82%2Bx%29%2F3+=+80\"
\n" ); document.write( "75+82+x = 240
\n" ); document.write( "157+x = 240
\n" ); document.write( "x = 83\r
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\n" ); document.write( "\n" ); document.write( "So, the student needs to get 83 or more.\r
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\n" ); document.write( "\n" ); document.write( "jon.
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