Question

Jessica currently has the following average in each of the categories listed above. Calculate Jessica's overall chemistry average if the district uses the following weights for each category:

10% homework
20% classwork
30% quizzes
40% tests

Answer 1

The question pertains to calculating an overall average based on weighted categories. Without Jessica's actual category averages, only an example calculation was provided to illustrate how to calculate the overall average if such averages were known.

Step-by-step explanation:

The student is asking how to calculate Jessica's overall chemistry average based on certain weighted categories. To calculate the overall average, we would multiply each category average by its respective weight and then sum these values. However, the student's question is missing Jessica's averages in each category, so we cannot perform the exact calculation. Instead, I will provide an illustrative example of how the calculation would be done if the averages were provided.

For example, if Jessica's averages were as follows: 90% for homework, 85% for classwork, 80% for quizzes, and 75% for tests, her overall average would be calculated like this:

• Homework average x Weight: 90% x 10% = 9%
  
  
• Classwork average x Weight: 85% x 20% = 17%
  
  
• Quizzes average x Weight: 80% x 30% = 24%
  
  
• Tests average x Weight: 75% x 40% = 30%

Sum these weighted averages to find the overall average:

Overall average = 9% + 17% + 24% + 30% = 80%

Jessica's overall chemistry average would be 80%.