The table below shows the scores that Amy and Bria have earned in their math class this quarter. Tests are worth 45%, quizzes ar
e worth 30%, homework is worth 15%, and the project is worth 10% of their quarter grade. Show how you can use matrix multiplication to determine what each student's quarter grade will be? 
1 answer:
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Answer:
Step-by-step explanation:
Given
--- Average
--- Average
Required
Determine the overall average
Represent the sum of the first three with x.
So:
Solve for x
Represent the sum of the next seven with y.
So:
Solve for y
The overall average is calculated as thus: