Question 776851: A student has grades of 78%, 85%, 88% and 96%. There is one test left, and the student needs to average 90% to earn an A. Does he have a chance?
Answer by wilft1(217)   (Show Source):
You can put this solution on YOUR website! he does not have a chance, even if he scores 100 percent on his last test his overall afterage will be 89.4
remember how to do averages, add up all the numbers you have, then divide that number by the number of numbers you have...
example...
the average of 34, 23, 54, 86, and 45 .... add them all up to get 242 there are 5 numbers so divide 242 by 5 to get the average, 48.4
|
|
|
