SOLUTION: Ms. Jackson let her students know that their final exam contained three groups of questions: - 16 multiple choice worth 1.5 points each

SOLUTION: Ms. Jackson let her students know that their final exam contained three groups of questions: - 16 multiple choice worth 1.5 points each - 16 short answer worth 2.5 points each -

Question 271961: Ms. Jackson let her students know that their final exam contained three groups of questions:
- 16 multiple choice worth 1.5 points each
- 16 short answer worth 2.5 points each
- 3 essay one worth 12 points each
A. What percent of the final exam is each group worth?
B. Beatrice has a semester average of 89 before she takes the final. She knows that the final is worth 25% of her total semester average. What is the greatest number of questions Beatrice can miss and still raise her final semester average to at least a 90? Explain how you arrived at your answer
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
A)
16*1.5+16*2.5+3*12=100 points for the exam.
multiple choice is 16*1.5 =24 percent of the exam
short answer is 16*2.5 =40 percent of the exam
essay=3*12=36 percent of the exam
B)
.25*x+.75*89=90
x=93
She needs to get a 93 on the exam.
So she can't lose more than 7 points to get her 90 average.

RELATED QUESTIONS
Deandre's final exam has true/false questions, worth 4 points each, and multiple choice... (answered by rothauserc)

Lessons Course Information Assessments Gradebook Email Discussion Groups ChatRoom... (answered by richard1234)

Samantha is about to take a final exam that consists of 20 questions. To motivate her to... (answered by Boreal)

You take a test in which there are 157 points possible. The test consists of true/false... (answered by ikleyn)

You take a test in which there are 341 points possible. The test consists of true/false... (answered by jorel555)

There is a test worth 204 total points. The test has true/false questions worth 2... (answered by ikleyn)

Louann and Carla received equal scores on a test made up of multiple choice questions and (answered by ikleyn)

1. In the table below, the random variable x represents the number of cups or cans of... (answered by almighty777)

A exam has 20 multiple choice questions( each had four choices: a,b,c,d) and 10 true... (answered by nasa)