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Laura is planning to buy two 5-lb bags of sugar, four 5-lb bags of flour, two 1-gal cartons of milk, and four 1-dozen cartons of large eggs. The prices of these items in three neighborhood supermarkets are as follows. Milk (1-gal carton) $2.99 Eggs (1-dozen carton) $3.49 Sugar (5-lb bag) Flour (5-lb bag) $3.79 Supermarket I Supermarket II Supermarket III $3.15 $3.29 $2.99 $2.99 $2.89 $2.79 $3.74 $2.98 $2.89 (a) Write a 3 x 4 matrix A to represent the prices (in dollars) of the items in the three supermarkets. A = (b) Write a 4 x 1 matrix B to represent the quantities of sugar, flour, milk, and eggs that Laura plans to purchase in the three supermarkets. B = (c) Use matrix multiplication to find a matrix C that represents Laura's total outlay (in dollars) at each supermarket. C =

Laura is planning to buy two 5-lb bags of sugar, four 5-lb bags of flour, two 1-gal cartons of milk, and four 1-dozen cartons of large eggs. The prices of these items in three neighborhood supermarkets are as follows. Milk (1-gal carton) $2.99 Eggs (1-dozen carton) $3.49 Sugar (5-lb bag) Flour (5-lb bag) $3.79 Supermarket I Supermarket II Supermarket III $3.15 $3.29 $2.99 $2.99 $2.89 $2.79 $3.74 $2.98 $2.89 (a) Write a 3 x 4 matrix A to represent the prices (in dollars) of the items in the three supermarkets. A = (b) Write a 4 x 1 matrix B to represent the quantities of sugar, flour, milk, and eggs that Laura plans to purchase in the three supermarkets. B = (c) Use matrix multiplication to find a matrix C that represents Laura's total outlay (in dollars) at each supermarket. C =

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Laura is planning to buy two 5-lb bags of sugar, four 5-lb bags of flour, two 1-gal cartons of milk, and four 1-dozen cartons of large eggs. The prices of these items in three neighborhood supermarkets are as follows. 實會會會 Milk (1-gal carton) Eggs (1-dozen carton) $3.49 $3.29 $2.99 Sugar (5-lb bag) $3.15 Flour Supermarket I Supermarket II Supermarket III (5-lb bag) $3.79 $2.89 $2.98 $2.99 $2.99 $3.74 $2.79 $2.89 (a) Write a 3 x 4 matrix A to represent the prices (in dollars) of the items in the three supermarkets. A = (b) Write a 4 x 1 matrix B to represent the quantities of sugar, flour, milk, and eggs that Laura plans to purchase in the three supermarkets. B = (c) Use matrix multiplication to find a matrix C that represents Laura's total outlay (in dollars) at each supermarket. C =
Transcribed Image Text:Laura is planning to buy two 5-lb bags of sugar, four 5-lb bags of flour, two 1-gal cartons of milk, and four 1-dozen cartons of large eggs. The prices of these items in three neighborhood supermarkets are as follows. 實會會會 Milk (1-gal carton) Eggs (1-dozen carton) $3.49 $3.29 $2.99 Sugar (5-lb bag) $3.15 Flour Supermarket I Supermarket II Supermarket III (5-lb bag) $3.79 $2.89 $2.98 $2.99 $2.99 $3.74 $2.79 $2.89 (a) Write a 3 x 4 matrix A to represent the prices (in dollars) of the items in the three supermarkets. A = (b) Write a 4 x 1 matrix B to represent the quantities of sugar, flour, milk, and eggs that Laura plans to purchase in the three supermarkets. B = (c) Use matrix multiplication to find a matrix C that represents Laura's total outlay (in dollars) at each supermarket. C =
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