document.write( "Question 1036755: An average score of 90 or above in a math class receives an A grade. You have scores of 94, 86, and 83 on three exams. Find the range of scores on the fourth exam that will give you an A grade for the course. Let N stand for your score on the fourth exam \n" ); document.write( "
Algebra.Com's Answer #651459 by FrankM(1040)![]() ![]() You can put this solution on YOUR website! To average 90, the 4 scores must add to 360 (right?)\r \n" ); document.write( "\n" ); document.write( "94+86+83 add to 263 and 360 - 263 = 97. \r \n" ); document.write( "\n" ); document.write( "It will take 97 or higher to get a 90 average (or greater) \n" ); document.write( " |