SOLUTION: Suppose that you are taking a course that has 4 tests. The first three tests are for 100 points each and the fourth test is for 200 points. To get an B in the course, you must have

Question 181058: Suppose that you are taking a course that has 4 tests. The first three tests are for 100 points each and the fourth test is for 200 points. To get an B in the course, you must have an average of at least 80 percent on the 4 tests. Your scores on the first 3 tests were 83, 75, and 91. What is the minimum score you need on the fourth test to get an B for the course?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
I'll call the points scored on the tests a, b, c, and d
Points scored on a, b, and c are:

The total possible points for the 4 tests are

In order to average %,

You must score 151 points out of 200 to get a B
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