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2 answers:
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If the problem was written x + 4x. We would know to add like the coefficients together and get 5x same thing with the radicals.
Using weighed averages, it is found that:
- The final grade is 91.
- The final grade is 66.8.
- The higher grade would be 79.55, with the second grading scheme.
- On average, she sold $48,280 per day.
- On average, she makes $12.5 per hour.
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To find the weighed average, we multiply each value by it's weight.
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Question 1:
- Grade of 91, with a weight of 67%.
- Grade of 91, with a weight of 33%.
Thus:
The final grade is 91.
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Question 2:
- Grade of 83, with a weight of 40%(highest grade).
- Grade of 60, with a weight of 30%.
- Grade of 52, with a weight of 30%.
Thus:
The final grade is 66.8.
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Question 3:
With teacher 1:
- 75 with a weight of 25%.
- 80 with a weight of 10%.
- 85 with a weight of 40%.
- 62 with a grade of 25%.
Thus:
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With teacher 2:
- 75 with a weight of 15%.
- 80 with a weight of 10%.
- 85 with a weight of 60%.
- 62 with a weight of 15%.
Thus:
The higher grade would be 79.55, with the second grading scheme.
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Question 4:
- Average of $36,432, with a weight of
- Average of $51,834, with a weight of
Thus:
On average, she sold $48,280 per day.
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Question 5:
- Average of $14.84, with a weight of
- Average of $10.76, with a weight of
Thus:
On average, she makes $12.5 per hour.
A similar problem is given at brainly.com/question/24398353