Alex needs to buy building supplies for his new patio. He needs 20 bags of cement, 30 cubie feet of sand, and 100 red bricks. There are two building supply stores in town, Rocko's and Big Mike's. The prices for each of the items are shown in the table. Cement Sand Red Brick Rocko's $4.00 per bag Big Mike's $0.00 per bag $2.00 per cubic foot $0.40 per brick $3.00 per cubic foot $0.20 per brick The prices and amounts are recorded in the matrices below: 20 4.00 2.00 0.4oT P- 30 6.00 3.00 0.20 100 a. What is the (1, 2) entry of the matrix P? What does it mean? The price of a(n) Solect an answer at Solect an answerv is $ per Select an answer v b. Find PA. c. What does the entry 180 mean in matrix PA?
Alex needs to buy building supplies for his new patio. He needs 20 bags of cement, 30 cubie feet of sand, and 100 red bricks. There are two building supply stores in town, Rocko's and Big Mike's. The prices for each of the items are shown in the table. Cement Sand Red Brick Rocko's $4.00 per bag Big Mike's $0.00 per bag $2.00 per cubic foot $0.40 per brick $3.00 per cubic foot $0.20 per brick The prices and amounts are recorded in the matrices below: 20 4.00 2.00 0.4oT P- 30 6.00 3.00 0.20 100 a. What is the (1, 2) entry of the matrix P? What does it mean? The price of a(n) Solect an answer at Solect an answerv is $ per Select an answer v b. Find PA. c. What does the entry 180 mean in matrix PA?
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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![Alex needs to buy building supplies for his new patio. He needs 20 bags of cement, 30 cubie feet of sand, and
100 red bricks. There are two building supply stores in town, Rocko's and Big Mike's. The prices for each of the
items are shown in the table.
Cement
Sand
Red Brick
Rocko's $4.00 per bag $2.00 per cubic foot $0.40 per brick
Big Mike's $6.00 per bag $3.00 per cubie foot $0.20 per brick
The prices and amounts are recorded in the matrices below:
20
4.00 2.00 0.40]
P-
30
6.00 3.00 0.20
100
a. What is the (1, 2) entry of the matrix P?
What does it mean?
The price of a(n) Solect an answer v at Select an answer v is $
per Select an answer v
b. Find PA.
c. What does the entry 180 mean in matrix PA?
The Select an answer v of what Alex needs at Select an answerv is $180.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7098688e-e608-4fb0-af9c-842fe854c17e%2F72393cf7-5afb-4310-82c5-eb9c752b70c6%2Fr8u280h_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Alex needs to buy building supplies for his new patio. He needs 20 bags of cement, 30 cubie feet of sand, and
100 red bricks. There are two building supply stores in town, Rocko's and Big Mike's. The prices for each of the
items are shown in the table.
Cement
Sand
Red Brick
Rocko's $4.00 per bag $2.00 per cubic foot $0.40 per brick
Big Mike's $6.00 per bag $3.00 per cubie foot $0.20 per brick
The prices and amounts are recorded in the matrices below:
20
4.00 2.00 0.40]
P-
30
6.00 3.00 0.20
100
a. What is the (1, 2) entry of the matrix P?
What does it mean?
The price of a(n) Solect an answer v at Select an answer v is $
per Select an answer v
b. Find PA.
c. What does the entry 180 mean in matrix PA?
The Select an answer v of what Alex needs at Select an answerv is $180.
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