Unit 2A CFA Review

Which expressions are equivalent to (-36x - 24)?

 Select ALL that apply.

​ ​ ​ ​ ​

• -4(6 + 8x)
• 12(-3x - 2)
• -6(4 + 6x)
• -2(12 + 18x)

Tags

CCSS.6.EE.A.3

CCSS.6.EE.A.4

Solve for x:

2x - ½( 2x - 10) = 12

Mathematical Equivalence

ON

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.A.3

Which equation represents the word problem below?

After a day at the Santa Monica Pier, you spent a total of $35. You spent $8 on food and the rest on ride tickets at $2.25 each. How many ride tickets did you buy? Let x represent the number of ride tickets purchased.

• 2.25x + 8 = 35

• 8x + 2.25 = 25

• 2.25x + 35 = 8

• 8x + 25 = 2.25

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.A.2

CCSS.6.EE.B.5

Solve for x.

Angie bought tickets for her and her friends to go to the movies. Tickets cost $8. She also spent $6 on food. She spent a total of $46. Write an equation to determine how many tickets Angie bought. Let t represent the number of tickets.

• x = 6

• x = 32

• x = 5

• x = 8

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.A.2

CCSS.6.EE.B.5

Before soccer practice, Allyson jogs around the field that measures (1/2x + 6) yards by (3x + 2) yards. How far will she jog? Which of the following equations could be used to solve for x?

• 2x (1/2x + 6)

• 2x + 1/2x + 6

• 2(1/2x + 6) + 2(3x + 2)

• 2(1/2x + 6) + 2x

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.A.3

CCSS.6.G.A.1

Consider the following equation.

• - (x - 5) + 3 (2x - 4) = 10

• -x - 5 - 6x - 12 = 10

• -x + 5 - 6x + 12 = 10

• -x - 5 + 6x - 12 = 10

• -x + 5 + 6x - 12 = 10

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.A.3

CCSS.6.EE.A.4

Write a simplified expression that represents the area of the rectangle.

Tags

CCSS.6.EE.B.6

CCSS.6.EE.A.2

CCSS.6.G.A.1

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.A.2

CCSS.6.EE.B.5

Sally is buying tiles for her bathroom floor. She drew a sketch of her bathroom floor with the measurements labeled. In order to know how many tiles she needs to buy, she needs to solve for the area of her room. If the area of Sally's bathroom is 72 square feet, 

what is the value of x?

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.G.A.1

Ms. Jones solved the following problem on the board. Some students in the class noticed her mistake. Find her mistake and solve to find the correct answer.

• She didn't combing like terms properly.

  x = 4

• She didn't distribute properly.

  x = 4

• She didn't use integer rules properly.

  x = 6

• She didn't use inverse operation properly.

  x = 6

Tags

CCSS.6.EE.B.7

CCSS.6.EE.B.5

CCSS.6.EE.A.3