Modeling with Linear Systems

Question 1

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

Revolt · Accepted Answer

H = the unit price of corn beef hashC = the unit price of creamed chipped beef

Question 2

Let x =

Revolt · Accepted Answer

number of songs; number of audiobooks

Question 3

Let y = price of each audiobook✔ number of audiobooksX length of each book recording

Revolt · Accepted Answer

number of audiobooks

Question 4

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

Revolt · Accepted Answer

2H + 3C = 4.953H + 2C = 5.45

Question 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

Revolt · Accepted Answer

✔ possible combinations of numbers of songs and numbers of audiobooks Ben may buy

Question 6

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

Revolt · Accepted Answer

12 songs and 4 books; 18 songs and 5 books; 35 songs and 1 book

Question 7

Solving, H = $ ⇒ 1.29

Revolt · Accepted Answer

Solving, H = $: 1.29; and C = $: 0.79; 1.29

Question 8

Recall the variable assignments: C = calories per cookie P = calories per slice of pizza I = calories per scoop of ice cream

Revolt · Accepted Answer

C + 2P +: 1; =: 770; 1; 0; 2; 3

Question 9

= ⇒ 770

Revolt · Accepted Answer

770

Question 10

C + P +

Revolt · Accepted Answer

1

Modeling with Linear Systems Answers

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