Wednesday

April 16, 2014

April 16, 2014

Posted by **LILO** on Tuesday, December 7, 2010 at 1:24pm.

The maximum score on an exam is 100 points. If it is not possible for Katie to achieve the required score on the exam, type np in the answer blank.

What is the minimum score must Katie get on the fifth exam for her overall mean to be at least 80? score = .

What is the minimum score must Katie get on the fifth exam for her overall mean to be at least 90? score

- MATH -
**PsyDAG**, Tuesday, December 7, 2010 at 10:55pmMean = Sum of scores/number o f scores

80 ≤ (68 + 66 + 82 + 80 + x)/5

Solve for x.

Do the same for 90.

**Related Questions**

math - wai ling averaged 84 on her first three exams and 82 on her next 2 exams....

Math - Doug had scores of 80, 85, 75, and 80 on his first four exams in a course...

math - Doug had scores of 80, 85, 75, and 80 on his first four exams in a course...

math - A mean average of 60 on 7 exams is needed to pass a course. on his first ...

Statistics - 5. Scores on a recent national statistics exam were normally ...

math - nadia has taken 3 exams and her average score so far is 80.If she gets ...

Algebra - The class average on a math test was 82 and there are 8 students in ...

algebra - Mike needs at least a 75% average to pass his math course. The class ...

math - Suppose that you are taking a course that has three exams which count for...

Math - To get a B in physics, a student must score an average of 80 on four ...