SOLUTION: In your Economics I class there are four tests and a final exam, all of which count equally. Your four test grades are 96, 87, 80, and 92. What grade on your exam is needed so you
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Question 991396: In your Economics I class there are four tests and a final exam, all of which count equally. Your four test grades are 96, 87, 80, and 92. What grade on your exam is needed so your average is between 80 and 90 for the course?
Let x represent your score on the exam. Answer by solver91311(24713) (Show Source):
Multiply 80 by 5. From that, subtract the sum of the scores you already have. The result is the lowest score you can obtain and have a score of 80 or better.
Multiply 90 by 5. From that, subtract the sum of the scores you already have. The result is the largest score you can obtain and have a score of 90 or less.
John
My calculator said it, I believe it, that settles it
