Unit 4 Test Review A

The difference of two numbers is 5. Their sum is 15. Find the numbers.

• x = 10, y = 5

• x = 5, y = 10

• x = 15, y = 45

• x = 45, y = 15

Tags

CCSS.8.EE.C.8C

The senior classes at High School A and High School B planned separate trips to New York City. The senior class at High School A rented and filled 2 vans and 9 buses with 435 students. High School B rented and filled 10 vans and 10 buses with 600 students. How many students can a van carry? How many students can a bus carry?

• 10 people per van, 50 people per bus

• 15 people per van, 45 people per bus

• 20 people per van, 40 people per bus

• 25 people per van, 35 people per bus

Tags

CCSS.8.EE.C.8C

Which method is best for solving this system of equations and why?

y = 2x – 6

4x + 12y = -16

• Elimination

• Substitution

• Graphing

• This is unsolvable

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which of the following graphs represents this inequality?

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Tags

CCSS.HSA.REI.D.12

Which of the following graphs represents this system of inequalities?

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Tags

CCSS.HSA.REI.D.12

Which of the following graphs represents this system of inequalities?

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Tags

CCSS.HSA.REI.D.12

Which of the following graphs represents this inequality?

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Tags

CCSS.HSA.REI.D.12

A teacher works for a textbook company during the summer. He makes $30 per page to write the material and $20 per page to type it. The teacher would like to earn at least $3000, but estimates he will only have time to complete up to 100 pages of work.

• x = pages written material, y = pages typed material

  x + y ≤ 100

  30x + 20y ≥ 3000

• x = pages written material, y = pages typed material

  x + y < 100

  30x + 20y > 3000

• x = pages written material, y = pages typed material

  x + y ≥ 100

  30x + 20y ≤ 3000

• x = pages written material, y = pages typed material

  x + y > 100

  30x + 20y < 3000

An electronics firm makes two kinds of televisions: High definition and 3-D. The firm has enough equipment to make up to 500 high definition sets per month or 600 3-D sets per month. It takes 10 worker-hours to make a high definition and 15 worker-hours to make a 3-D. The firm has no more than 12,000 worker-hours of labor available each month. Which graph represents the situation above?

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Tags

CCSS.HSA.REI.D.12

• (2, 9)

• (3, 9)

• (2, 8)

• (3, 8)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6