document.write( "Question 678407: If the average of 57 numbers is 85, what number must be added to give an average of 87? \n" ); document.write( "
Algebra.Com's Answer #421388 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If the average of 57 numbers is 85, what number must be added to give an average of 87? \n" ); document.write( "--------------- \n" ); document.write( "(57*85 + n)/58 = 87 \n" ); document.write( "n + 4845 = 58*87 = 5046 \n" ); document.write( "n = 201 \n" ); document.write( " \n" ); document.write( " |