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January 31, 2015

January 31, 2015

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.

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