Problema Solution
to get an a in a course you must have an average of atleast 90 on four tests of 100 points each. the scores on your first three tests are 87,92,and 84 what must you score on the fourth test to get an a for the course?
Answer provided by our tutors
To average 90 on these 4 tests worth 100 points each, you need a total of 360 points.
After three tests, you have (87 + 92 + 84) = 264 points.
To get an average of 90, you need 360-264 = 96 points on your fourth exam.