Multiplying Matrices | Precalculus | Eat Pi

In this video, I teach you how to multiply matrices (matrix) of the same sizes and different sizes (dimensions).

There are a couple playlists attached at the end of the video if you need help with any other topics.

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[ArcadeMaster]

So multiplying square matrices would seem to be easiest right, cause the resulting matrix would eb the same as the two and you don't need to check the numbers right?

[ArcadeMaster]

This is actually a question I had, it's a fraction problem but a tough one I was confused on solving, here it is, it's more difficult than I expected "Bill is throwing a party. He wants to buy a pound and a half of mixed nuts. 1/3 is almonds, 2/3 are walnuts. The total cost is $7.50. The almonds cost $4 a pound. How much do the walnuts cost?"