Modeling with Systems of Linear Equations

Question 1

Enrique has $50 in his lunch account and spends $5 per day from the account. Maya has $46 in her lunch account and spends $4 per day from the account. Which equations model the situation?

Revolt · Accepted Answer

50 – 5x = y and 46 – 4x = y

Question 2

⇒ 170

Revolt · Accepted Answer

300

Question 3

Question 3

Revolt · Accepted Answer

3

Question 4

Let x be the average airspeed of the plane.

Revolt · Accepted Answer

42; 12

Question 5

Question 5

Revolt · Accepted Answer

12

Question 6

Charlotte’s weekly paycheck is based on the number of hours worked during the week and on the weekend. If she works 13 hours during the week and 14 hours on the weekend, she earns $250.90. If she works 15 hours during the week and 8 hours on the weekend, she earns $204.70. How much more does Charlotte earn per hour on the weekends than she earns during the week? Round to the nearest cent.

Revolt · Accepted Answer

$2.30

Question 7

Analyze the daughter’s solution. Which statements are true? Check all that apply.

Revolt · Accepted Answer

The equation 2n = p should be 2p = n.; The actual cost of the onions is $3.00 per pound.; Potatoes cost $1.50 per pound.

Question 8

✔ y = 25x + 500y = 25x + 525y = 50x + 500y = 50x + 525

Revolt · Accepted Answer

✔ y = 25x + 500

Question 9

y = 25x + 430✔ y = 30x + 400y = 60x + 400y = 60x + 430

Revolt · Accepted Answer

✔ y = 30x + 400

Question 10

91019✔ 20

Revolt · Accepted Answer

✔ 20

Modeling with Systems of Linear Equations Answers

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