Question

Eloise got the following scores on the first five quizzes of the semester: 6,9,7,8,9. There is one more quiz left. What score must Eloise get on the last quiz to have a mean quiz score of 8? Explain how you found your answer

Answer 1

9

Explanation:

when u add her past five scored together, you get 39. your equation would be

39 + x

------------- = 8

6

you multiply both sides by 6 and get

39+x = 48

subtract 39 from both sides to get 9