a) Express these orders as a 1 × 4 matrix.

b) Use matrix multiplication to determine the amount of each ingredient needed to fill the day’s order.

In Exercise, use the information given in Exercise 53. Suppose a typical day’s order consists of 40 dozen chocolate chip cookies, 30 dozen sugar cookies, 12 dozen molasses cookies, and 20 dozen peanut butter cookies.

Data From Exercise 53:

Mrs. Keller’s Cookies bakes and sells four types of cookies: chocolate chip, sugar, molasses, and peanut butter. Matrix A indicates the number of units of various ingredients used in baking a dozen of each type of cookie.

The cost, in cents per cup or per egg, for each ingredient when purchased in small quantities and in large quantities is indicated in matrix B below.

Transcribed Image Text:

Sugar Flour Milk Eggs 2 2 1 Chocolate chip 2. 2 Sugar 3 Molasses 0 Peanut butter 3 2 1 1