document.write( "Question 16737: Margarita received grades of 79%, 86%, 92%, and 83% on his first four Algebra/Trigonometry exams. What grade must she get on the next exam in order to increase her test average by 2 points? \n" ); document.write( "
Algebra.Com's Answer #8176 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! The current average is 85. The average after being increased by 2 points is 87, so she would have to score an 87 plus enough points to add 2 points to each of her other 4 grades. That is 87 + 2*4 = 95.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "As a check, average the grades: \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R^2 at SCC \n" ); document.write( " |