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?

5 answers

93 90x6=540
82+87+95+90+93=447
540-447=93
She has 447 out of 500 points now.

0.9 * 600 = 540

540 - 447 = 93
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
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
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?