Question 1161434: The following information matrices show the number of breakfasts & lunches sold at a little creek middle school on Monday and the prices of breakfast and lunch.
Which of the following best describes the element?
A. Sixth graders paid a total of $508.50 for all their meals on Monday.
B. Breakfast costs $2.75
C. There are 22 sixth graders eating breakfast on Monday.
D. Sixth graders paid a total of $60.50 for their breakfast meals on Monday.
The question is provided in the link here: https://i.imgur.com/8JKmeXi.png'
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! This is a 3 x 2 matrix multiplied by a 2 x 1 matrix, so the product will be a 3x1 matrix and the element at 1,1 is the product of the sixth grade class (2 parts), multiplied by the breakfast and lunch. This will be A above.
The others are true, but the element of the product (1,1) is A.
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