document.write( "Question 100838: A student has earned scores of 87, 81, and 88 on the first 3 of 4 tests. If the student wants an average(arithmetic mean) of exactly 87, what score must she earn on the fourth test?\r
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document.write( "A. 85
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document.write( "B. 86
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document.write( "C. 87
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document.write( "D. 92
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document.write( "E. 93 \n" );
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Algebra.Com's Answer #73510 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! 87+81+88=256 ... 87*4=348 ... 348-256=92 \n" ); document.write( " |