document.write( "Question 680448: Twenty students took their Chemistry test on Tuesday and their average (arithmetic mean) was 85. Five students took a make up test and their average (arithmetic mean) was 80. What was the average for the entire class? \n" ); document.write( "
Algebra.Com's Answer #422333 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Twenty students took their Chemistry test on Tuesday and their average (arithmetic mean) was 85. Five students took a make up test and their average (arithmetic mean) was 80. What was the average for the entire class? \n" ); document.write( "----- \n" ); document.write( "Average = (total test points)/(total students) = (20*85+5*80)/25 = 84 \n" ); document.write( "==================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "===================== \n" ); document.write( " |