Question
Each question Sandra answers incorrectly changes her overall score by – 3/4 points. Sandra's
overall score was -4 1/2 points, and then she answered the last question incorrectly. What
was Sandra's final score?
Answers
-5 1/4
-3 3/4
5 1/4
3 3/4
overall score was -4 1/2 points, and then she answered the last question incorrectly. What
was Sandra's final score?
Answers
-5 1/4
-3 3/4
5 1/4
3 3/4
Answers
There are no human answers yet.
Answered by
GPT 3.5
To find Sandra's final score, we need to add the change in score caused by answering the last question incorrectly to her overall score. Each incorrect answer changes her overall score by -3/4 points.
Sandra's overall score was -4 1/2 points, which can be written as -9/2.
Answering the last question incorrectly would result in a score change of -3/4 points.
To find the final score, we add the change in score to Sandra's overall score:
Final score = -9/2 + (-3/4)
To add these fractions, we need a common denominator, which is 4:
Final score = -9/2 + (-3/4) = -18/4 + (-3/4) = -21/4
The final score is -21/4, which can be written as -5 1/4.
Therefore, the correct answer is -5 1/4.
Sandra's overall score was -4 1/2 points, which can be written as -9/2.
Answering the last question incorrectly would result in a score change of -3/4 points.
To find the final score, we add the change in score to Sandra's overall score:
Final score = -9/2 + (-3/4)
To add these fractions, we need a common denominator, which is 4:
Final score = -9/2 + (-3/4) = -18/4 + (-3/4) = -21/4
The final score is -21/4, which can be written as -5 1/4.
Therefore, the correct answer is -5 1/4.
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