To check: that which of the factory made more chairs during both shifts by using matrices.
Answer to Problem 23PPE
Factory B.
Explanation of Solution
Given:
During the first shift, Factory A made 250 chairs and 145 tables and Factory B made 300 chairs and 75 tables.
During the second shift, Factory A made 275 chairs and 90 tables and Factory B made 240 chairs and 120 tables.
Calculation:
According to the question
First create a matrix for the first shift with the top row being factory A and the bottom row being Factory B and with the left column being number of chairs made and the right column being number of tables and fill in the corresponding numbers.
Then create a matrix for the second shift with the top row being factory A and the bottom row being Factory B and with the left column being number of chairs made and the right column being number of tables and fill in the corresponding numbers.
Now, add the matrices, then
Compare the top left value in the matrix (number of chairs factory A made over 2 shifts) to the bottom left value in the matrix (number of chairs factory B made over 2 shifts).
Hence, Factory B produced more chair.
Chapter 12 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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