Question

erika has received scores of 82, 87, 93, 95, and 90 on math quizzes. What score must Erika get on her next quiz to have an average of 90?

Answer 1

93 90x6=540
82+87+95+90+93=447
540-447=93

Answer 2

She has 447 out of 500 points now.

0.9 * 600 = 540

540 - 447 = 93

Answer 3

Here are the scores Erica received on her math quizzes.

Find her mean score with and without the outlier.

Quiz Scores: 84, 85, 91, 81, 52, 92, 99, and 91
Answer choices:
84.4 with; 93 without
89 with; 80 without
84.4 with; 89 without
88 with; 79 without

Answer 4

Here are the scores Erica received on her math quizzes.

Find her mean score with and without the outlier.

Quiz Scores: 84, 85, 91, 81, 52, 92, 99, and 91

Answer 5

A play ran for 120 performances. The theater was full for 85% of them.

Which number represents the amount of performances when the theater was NOT full?