Sept. 17th/09

This class we did some more practicing on Matrix Multiplication. "Just because you can doesn't mean you should."

We did a practice question from Exercise 5, question 3.
It definitely got you thinking and with a little bit more practice I hope I will be able to understand it.

We then had to do question 2 from Exercise 5 and describe how we did it...so here it goes!

The first question asked the weekly production of kitchen and bedroom suites.
It gave you the first matrix
[30 10] [3]
[40 15] [8]
=
[170]
[240]

There were three factories for type A and eight factories for type B. So we had to use
matrix multiplication to find out the weekly production. The answer is 170 kitchens and 240 bedrooms.

It next asked you to find the total market value of the goods purchased.

We took the weekly production and multiplied it by what the kitchen and bedrooms sell for.

[170 240] [1500] = The total value which is $783,000
[2200]