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

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Question 343430: Suppose that you are taking a course that has 4 tests. The first three test 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% on the 4 tests. Your scores on the 1st 3 test 83,84, and 98. What is the minimum score you need on the 4th test to get an B?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The trick to this one is to consider the 4th test worth 200 points to be a 4th and 5th test, each worth 100 points.

In order to have an 80% average, you need 5 times 80 equals 400 total points. You already have 83 + 84 + 98 = 265 points, so how many points out of the total 200 available on the 4th exam do you need to make at least 400 total?

John

My calculator said it, I believe it, that settles it