Question

Can someone help me through this matrix problem??

Answer 1

can you help me @Kainui ?

Answer 2

heeelllllppppp

Answer 3

if my memory serves me write we
write a 1 row 3 column matrix for the prices

(3 5 7) - the price of the hammers , flashlights, lanterns

pre-multiplying the product matrix by this price matrix gives the money taken in by each store for each product

Answer 4

i will help you but you got to help me

Answer 5

oh alright that makes sense, though i'm not sure how to multiply them

Answer 6

let me see it

Answer 7

what @maire2002 ?

Answer 8

let me see your

Answer 9

so multiplying thefirst column (Store A) by the price matrix gives

Store A
30
15
14

Answer 10

multiplying the other 2 columns gives a 3*3 matrix of all the money taken in by the 3 stores

the sum of the amounts in the middle column gives you total revenue for all flashlights

Answer 11

don't post your problems on my post!

Answer 12

Delete that @maire2002

Answer 13

* sorry THat's the MIDDLE ROW

Answer 14

do you see how i got the first column of the revenue matrix
Store A
3 * 10
5 * 3
7 * 2

Answer 15

yes I understand now thank you so much! so what does the product matrix represent?