SOLUTION: The final exam will count as two tests, brooke has test scores of 83,80,71,61,and 95. What score does brooke need to get on the final in order to have an average score of 80?
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-> SOLUTION: The final exam will count as two tests, brooke has test scores of 83,80,71,61,and 95. What score does brooke need to get on the final in order to have an average score of 80?
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Question 559517: The final exam will count as two tests, brooke has test scores of 83,80,71,61,and 95. What score does brooke need to get on the final in order to have an average score of 80? Answer by htmentor(1343) (Show Source):
You can put this solution on YOUR website! Let s = the score on the final exam
Since the final exam counts as two tests, the average score is given by:
80 = (2s + 83 + 80 + 71 + 61 + 95)/7
560 = 390 + 2s
s = 170/2 = 85
So she needs an 85 on the final
