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)\"\" \"About 
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( "
\n" );