Posted by Kayla on Thursday, December 8, 2011 at 7:36pm.
To get an A in psychology, a student must score an average of 90 on four tests. Scores on the first three tests were 96,92,88. What is the lowest score the student can make on the last test and still get an A?

Math  Ms. Sue, Thursday, December 8, 2011 at 7:45pm
(96 + 92 + 88 + x) / 4 = 360
Solve for x.