Solve the problem. A company makes three chocolate candies: cherry, almond, and raisin. Matrix A gives the amount of ingredients in one batch. Matrix B gives the costs of ingredients from suppliers X and Y. What is the cost of 100 batches from supplier X? pictures down below in a moment

Question

anonymous · Answer

A=

anonymous · Answer

B=3 2 sugar 
    3 4 choc

    2  2 milk

anonymous · Answer

A. $6600	

B. $7800	

C. $3300	

D. $4800

mandre · Answer

This looks like matrix multiplication.
$$\left[\begin{matrix}4 & 6 & 1 \ 5&3&1\ 3 & 3 & 1\end{matrix}\right].\left[\begin{matrix}3 &2 \ 3&4\ 2 & 2\end{matrix}\right]$$

anonymous · Answer

im so confused by it all...

anonymous · Answer

please help lol

mandre · Answer

It's 3x3 times 3x2 so you'll end up with a 3x2
a11 (That's the number in row 1, column 1) = 4*3+6*3+1*2 (row * column).
a21(row 2, column 1) = 5*3+3*3+1*2

You with me so far?

anonymous · Answer

uh no.. :/

mandre · Answer

You don't know matrix multiplication?

anonymous · Answer

no...

mandre · Answer

Then you have a problem. I presume this is Linear algebra?

anonymous · Answer

yea im on a exam atm and im stuck on this question but i really need the points for it tho

mandre · Answer

Sorry, then I can't help you any further.