Laura is planning to buy four 5-lb bags of sugar, five 5-lb bags of flour, four 1-gal cartons of milk, and five 1-dozen cartons of large eggs. The prices of these items in three neighborhood supermarkets are as follows. A = Flour Supermarket I (5-lb bag) $3.79 $2.89 Supermarket II Supermarket III $2.98 (a) Write a 3 x 4 matrix A to represent the prices (in dollars) of the items in the three supermarkets. B = C = Sugar (5-lb bag) $3.15 $2.99 $3.74 ↓t (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. → ↓ 1 Milk (1-gal carton) $2.99 $2.79 $2.89 Eggs (1-dozen carton) $3.49 $3.29 $2.99 (c) Use matrix multiplication to find a matrix C that represents Laura's total outlay (in dollars) at each supermarket.
Laura is planning to buy four 5-lb bags of sugar, five 5-lb bags of flour, four 1-gal cartons of milk, and five 1-dozen cartons of large eggs. The prices of these items in three neighborhood supermarkets are as follows. A = Flour Supermarket I (5-lb bag) $3.79 $2.89 Supermarket II Supermarket III $2.98 (a) Write a 3 x 4 matrix A to represent the prices (in dollars) of the items in the three supermarkets. B = C = Sugar (5-lb bag) $3.15 $2.99 $3.74 ↓t (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. → ↓ 1 Milk (1-gal carton) $2.99 $2.79 $2.89 Eggs (1-dozen carton) $3.49 $3.29 $2.99 (c) Use matrix multiplication to find a matrix C that represents Laura's total outlay (in dollars) at each supermarket.
Chapter1: Whole Numbers
Section1.2: Add Whole Numbers
Problem 136E: Calories Fred had a grilled chicken sandwich, a small order of fries, and a 12-az chocolate shake...
Related questions
Question
Transcribed Image Text:Laura is planning to buy four 5-lb bags of sugar, five 5-lb bags of flour, four 1-gal cartons of milk, and five 1-dozen cartons of large eggs. The prices of these items in three
neighborhood supermarkets are as follows.
A =
Flour
Supermarket I
(5-lb bag)
$3.79
Supermarket II
$2.89
Supermarket III
$2.98
(a) Write a 3 x 4 matrix A to represent the prices (in dollars) of the items in the three supermarkets.
B =
↓ 1
C =
(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.
-
Sugar
(5-lb bag)
$3.15
$2.99
$3.74
↓ ↑
→
Milk
(1-gal
carton)
$2.99
$2.79
$2.89
Eggs
(1-dozen
carton)
$3.49
$3.29
$2.99
(c) Use matrix multiplication to find a matrix C that represents Laura's total outlay (in dollars) at each supermarket.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Elementary Algebra
Algebra
ISBN:
9780998625713
Author:
Lynn Marecek, MaryAnne Anthony-Smith
Publisher:
OpenStax - Rice University
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning