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. The cost (in cents) for each ingredient when purchased in large lots or small lots is given in matrix B.
Suppose a day's orders consist of 20 dozen sweet rolls, 200 loaves of bread, 50 cakes, and 60 pies. Use matrix
Multiplication to find a matrix giving the costs under the two purchase options to fill the day's orders.
A) 13,655 17,650
B) 12,395 16,030
C) 12,965 16,030
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.  The cost (in cents) for each ingredient when purchased in large lots or small lots is given in matrix B. 
 Suppose a day's orders consist of 20 dozen sweet rolls, 200 loaves of bread, 50 cakes, and 60 pies. Use matrix
Multiplication to find a matrix giving the costs under the two purchase options to fill the day's orders.
A) 13,655 17,650 
B) 12,395 16,030 
C) 12,965 16,030 
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.  The cost (in cents) for each ingredient when purchased in large lots or small lots is given in matrix B. 
 Suppose a day's orders consist of 20 dozen sweet rolls, 200 loaves of bread, 50 cakes, and 60 pies. Use matrix
Multiplication to find a matrix giving the costs under the two purchase options to fill the day's orders.
A) 13,655 17,650 
B) 12,395 16,030 
C) 12,965 16,030 
D) These matrices cannot be multiplied.

Le Boulangerie, a Bakery, Sells Four Main Items: Sweet Rolls