SOLUTION: You are taking a course that has four tests. The first three tests are 100 points each and the fourth test is 200 points. To get an A in the course you must have an average of at l

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Question 1046350: You are taking a course that has four tests. The first three tests are 100 points each and the fourth test is 200 points. To get an A in the course you must have an average of at least 90% On the four tests. Your scores on the first three tests are 87, 92, and 84 what must you score on the fourth test to get an A in the course?
Answer by solver91311(24713) About Me  (Show Source):
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Three tests that are worth 100 maximum plus one test that is worth 200 maximum is the same thing as five tests that are worth 100 each. So you want the average of five scores to be 90. If the average of 5 scores is at least 90, then the total of the 5 scores must be at least 5 times 90. Add the scores that you have and subtract from 5 times 90 to get the score you need out of 200 on the last test.

John

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