Unit 6 Weeks 24-25 Review

In this system of equations, what is the solution?

4x - 2y = 10

-5x + 6y = -9

• (1, 3)

• (-1, -3)

• (-3, 1)

• (3, 1)

What is the value of x in this system?

18x + 20y = 44

x + y = 2

• 2

• -2

• 4

• -4

If x represents hot dogs and y represents hamburgers, and Jeff bought hot dogs for $4 each and hamburgers for $7 each, what is the correct system if there are 40 total pieces of meat and he spent $235?

• x + y = 235

  4x + 7y = 40

• x + y = 40

  7x + 4y = 235

• x + y = 235

  7x + 4y = 40

• x + y = 40

  4x + 7y = 235

Raul saved $200 and Jamie saved $300 so far. They start working at a job where they get paid the same per day. They save the money each day. How many days will it take for them to have the same total money saved if Raul saves $40 per day and Jamie saves $30 per day?

• 5

• 8

• 10

• 15

A 100 point test consists of 2 point questions and 7 point questions. How many of each question are there if there are 25 questions on the test?

• 15 2 pointers and 10 7 pointers

• 10 2 pointers and 15 7 pointers

• 14 7 pointers and 1 2 pointer

• 50 2 pointers and no 7 pointers

In a situation, x represents number of minutes reading and y represents number of pages read. If I have an ordered pair of (20, 30), what does this represent?

• 20 hours reading 30 pages

• 20 pages read in 30 minutes

• 30 pages read in 20 minutes

• 20 pages read 1 day and 30 the next day

Gloria wants to stream movies on her TV. 2 different services are offered. X-Stream offers a monthly fee of $16 and $2.50 per movie streamed. Stream-Y offers a monthly fee of $10 and $5.50 per movie streamed. The system is 

y = 16 + 2.50x

y = 10 + 5.50x

Which of the following statements is true?

• When Gloria streams 2 movies, her cost is more for X-Stream.

• When Gloria streams 4 movies, her cost is more for X-Stream.

• When Gloria streams 1 movie, her cost is less for Stream-Y.

• When Gloria streams 3 movies, her cost is the same for both.