Posted by Tehila on Thursday, April 22, 2010 at 4:48pm.
Jasmine has an average of 95 on 15 quiz grades. If her teacher drops Jasmineâ€™s lowest grade, a 72, which equation can beused to find n, Jasmineâ€™s new quiz average?
A n = (9572)/14
B n = [(95x15)72]/14
C n = [(95x15)72]/15
D n=[95(7215)]/14

Math  Reiny, Thursday, April 22, 2010 at 5:55pm
total of 15 tests = 95x15
take 72 away > 95x15  72
find average of 14 tests > (95x1572)/14 
Math  felix, Wednesday, March 9, 2011 at 6:35pm
there were 10 quizzes. the range was 38. the mean was 90. there was one outlier. few students got 100. Find the sum of the 10 quiz.