document.write( "Question 177003: A teacher allows the students to each \"throw out\" their lowest test scores in order to increase their overall grade. The original mean score of 5 test is 75.2. After the removal of the lowest test, the mean score becomes 80.25. What was the score of the removed test? \n" ); document.write( "
Algebra.Com's Answer #132041 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A teacher allows the students to each \"throw out\" their lowest test scores in order to increase their overall grade. The original mean score of 5 test is 75.2. After the removal of the lowest test, the mean score becomes 80.25. What was the score of the removed test? \n" ); document.write( "------------------------------------ \n" ); document.write( "Original Point total = 5*75.2 = 376 \n" ); document.write( "----------- \n" ); document.write( "Let the removed score be \"x\". \n" ); document.write( "---------------------------------- \n" ); document.write( "New mean score Equation: (376-x)/4 = 80.25 \n" ); document.write( "376-x = 321 \n" ); document.write( "x = 376-321\r \n" ); document.write( "\n" ); document.write( "x = 55 (the low score that was removed) \n" ); document.write( "============================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |