Posted by **felicia** on Saturday, June 2, 2012 at 8:45pm.

Tim wants his mean (average) quiz score in history class to be 90. His first 3 quiz scores were 86, 92, and 94. What score should he make on the 4th quiz in order to have a mean (average) quiz score of exactly 90?

I really need the answer ! PLZ PLZ PLZ ! cant figure it outtt !!!! -___-

## Answer this Question

## Related Questions

- algebra - Use the five steps for problem solving to answer the following ...
- math - Mary's quiz scores were 92 85 78 92 71 77 and 80 she told her mom she had...
- algebra - please translate “A student scored five points more on the second quiz...
- Math - I have this question for summer homework: "Mary's quiz scores were 92, 85...
- Csb - A student obtained the following quiz scores: 90, 85, 93, and 78. What ...
- Math - You have a mean score of 86 on 9 quizzes. The teacher decides to drop ...
- Math - An instructor gives regular 20-point quizzes and 100-point exams in a ...
- Statistic - There are two independent multiple-choice quizzes where quiz 1 has ...
- statistic and probability - There are two independent multiple-choice quizzes ...
- statistics - For this class, the first quiz had a mean of 90.4% with a standard ...

More Related Questions