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?

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?

Algebra.Com

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
RELATED QUESTIONS
Going into the final exam, which will count as two tests, Brooke has test scores 80, 83,... (answered by Edwin McCravy)

Going into the final exam, which will count as two tests, Brooke has test scores of 75,... (answered by Boreal)

Going into the final exam, which will count as 2 tests, Brooke has a test score of 80,... (answered by Edwin McCravy,josmiceli)

Going into the final exam, which will count as two tests, Jack has test scores 80, 83,... (answered by josgarithmetic,greenestamps,math_tutor2020)

Going into the final exam which will count as two test, amelia has test scores of 77 86... (answered by richwmiller)

Going into the final exam, which will count as two tests, Ameilia has test scores of... (answered by ankor@dixie-net.com)

Going into the final exam, which will count as two tests, Amelia has test scores of 75,... (answered by ankor@dixie-net.com)

Question Help Going into the final exam, which will count as two tests, Amelia... (answered by ikleyn,greenestamps)

Going in to the final exam which will count as three tests Jerome has test scores of... (answered by ankor@dixie-net.com)