Exercise 5: Question 2

a) The weekly production of kitchen and bedroom suites:
Factory A: 3* [30/40] = [90/120] ~note: these matrices are 2 by 1
Factory B: 8* [10/15] = [80/120] ~these are also 2 by 1
There are three factories of type A so I multiplied the production for one week in a factory by three to represent the amount produced in all three factories of this type. The same was done to the second type of factory which has eight factories.
To find the total amount of suites over both factories I now add the amounts that I acquired in the first step:
[90/120] + [80/120] = [170/240] ~again 2 by 1 matrices
Therefore, in one week, 170 kitchen suites are produced and 240 bedroom suites are produced.

b) The total market value of the goods purchased:
[170 240] * [1500/2200] = [783,000]
This says that 170 kitchen suites and 240 bedroom suites multiplied by their respective prices ($1500 per kitchen and $2200 per bedroom) gives us the total value of all the suites. Note, that when I did this, the number of suites was in a 1 by 2 format and the prices are in a 2 by 1 format so that multiplying could be achieved.

Matrix Introduction

This will likely be my last (and first) content-related post, but rest assured I'll be keeping track of how and what you're learning from and with each other....The question that I left you with goes something like this

"Why Does It Say ADD, SUBTRACT, MULTIPLY AND MULTIPLY?"....

and feel free to find your answer anywhere, anyhow....

Use the material as you need to...

RM