document.write( "Question 1039742: The marks of 7 students in a test are 88, 75, 93, 98, 27, 80, and 36. If 8 students sat the test and the average mark was 65, what score did the eighth student achieve on the test?
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Algebra.Com's Answer #654508 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! The marks of 7 students in a test are 88, 75, 93, 98, 27, 80, and 36. \n" ); document.write( " If 8 students sat the test and the average mark was 65, what score did the eighth student achieve on the test? \n" ); document.write( ": \n" ); document.write( "let x = the score of the 8th student \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "add em up and multiply both sides by 8 \n" ); document.write( "497 + x = 520 \n" ); document.write( "x = 520 - 497 \n" ); document.write( "x = 23 is the score of the 8th student \n" ); document.write( " |