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

Solving Linear Systems by Substitution 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 =

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

C +

Answer:

2C +

5

P + 2I = 1,320

Answer:

3P + 2I = 1,320

6

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
7

and C = $

Answer:

0.79

8

What is meant by “options” in the context of the final question?

A
price ranges of items from which Ben can choose
B
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
9

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
10

C + 2P +I

Answer:

1

11

P + 2I = 1,320

Answer:

3P + 2I = 1,320

12

Let x =

A
price of each song
B
number of songs
C
length of each song recording
13

=

Answer:

770

14

I= 370

Answer:

0I= 370

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