AnswersEAP-Algebra Functions and Data Analysis A CRSolving Linear Systems by Substitution

Modeling with Linear Systems Answers

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Which assignment of variables can be used in finding the cost of each item in the word problem on the left?

A
J = the number of cans Jan boughtW = the number of cans Wayne bought
B
H = the unit price of corn beef hashC = the unit price of creamed chipped beef
C
J = the total cost of Jan’s billW = the total cost of Wayne’s bill
3

Let y = price of each audiobook✔ number of audiobookslength of each book recording

A
price of each audiobook
B
✔ number of audiobooks
C
length of each book recording
4

Which system of equations models the word problem on the left?

A
3H + 2C = 4.952H + 3C = 5.45
B
2H + 2C = 4.953H + 3C = 5.45
C
2H + 3C = 4.953H + 2C = 5.45
D
3H + 3C = 5.452H + 2C = 4.95
5

What is meant by “options” in the context of the final question? price ranges of items from which Ben can chooseX number of choices of song and book titles available for purchase✔ possible combinations of numbers of songs and numbers of audiobooks Ben may buy

A
price ranges of items from which Ben can choose
B
X number of choices of song and book titles available for purchase
C
✔ possible combinations of numbers of songs and numbers of audiobooks Ben may buy
6

Select all combinations that are possible options within Ben’s purchasing constraints.

A
12 songs and 4 books
B
15 songs and 9 books
C
18 songs and 5 books
D
35 songs and 1 book
7

Let x = price of each song✔ number of songslength of each song recording

Answers:
Selection 1:number of songs
Selection 2:number of audiobooks
8

Question text not available

Answers:
Selection 1:number of songs
Selection 2:number of audiobooks

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