Le Boulangerie, a bakery, sells four main items: sweet rolls, bread, cakes, and pies. The amount of each ingredient (in cups, except for eggs) required for these items is given by matrix A.
Suppose a day's orders consist of 20 dozen sweet rolls, 200 loaves of bread, 50 cakes, and 60 pies. Write the orders as a $1 \times 4$ matrix and, using matrix multiplication, write as a matrix the amount of each ingredient needed to fill the day's orders.
A) $[ 66075413512570 ]$
B) $\left[ \begin{array} { l l l l l } 660 & 1150 & 150 & 125 & 250 \end{array} \right]$
D) These matrices cannot be multiplied.

Question

Le Boulangerie, a bakery, sells four main items: sweet rolls, bread, cakes, and pies. The amount of each ingredient (in cups, except for eggs) required for these items is given by matrix A. 
Suppose a day's orders consist of 20 dozen sweet rolls, 200 loaves of bread, 50 cakes, and 60 pies. Write the orders as a $1 \times 4$ matrix and, using matrix multiplication, write as a matrix the amount of each ingredient needed to fill the day's orders.
A) $[ 66075413512570 ]$ 
B) $\left[ \begin{array} { l l l l l } 660 & 1150 & 150 & 125 & 250 \end{array} \right]$ 
D) These matrices cannot be multiplied.

Quizplus · Accepted Answer

The Answer of Le Boulangerie, a bakery, sells four main items: sweet rolls, bread, cakes, and pies. The amount of each ingredient (in cups, except for eggs) required for these items is given by matrix A. 
Suppose a day's orders consist of 20 dozen sweet rolls, 200 loaves of bread, 50 cakes, and 60 pies. Write the orders as a $1 \times 4$ matrix and, using matrix multiplication, write as a matrix the amount of each ingredient needed to fill the day's orders.
A) $[ 66075413512570 ]$ 
B) $\left[ \begin{array} { l l l l l } 660 & 1150 & 150 & 125 & 250 \end{array} \right]$ 
D) These matrices cannot be multiplied.

Le Boulangerie, a Bakery, Sells Four Main Items: Sweet Rolls 1×41 \times 41×4

Le Boulangerie, a Bakery, Sells Four Main Items: Sweet Rolls $1 \times 4$