7th Grade Final Exam B

Match each phrase with the correct symbol.

• greater than

• less than or equal to

• not equal to

• less than

• greater than or equal to

When graphing inequalities:

Use an open circle for ​​ (a)   .

Use a closed circle for ​​​​ (b)   .

• > or <
• ≥ or ≤

Match each statement with the correct graph.

• y < 6

• 
• y > 6

• 
• y ≤ 6

• 
• y ≥ 6

• 

Solve the following inequality:

x + 2 > 12

• subtract 2 from both sides and your answer is

  x = 10

• subtract 2 from both sides and your answer is

  x > 10

• subtract 2 from both sides and your answer is

  X < 10

Solve 5x > 10

• divide by 5 on both sides and your answer is

  x = 2

• divide by 5 on both sides and your answer is

  x < 2

• divide by 5 on both sides and your answer is

  x > 2

Try some:

-2x ≤ 4

• divide by -2 o both sided and your answer will be

  x = -2

• divide by -2 on both sides and you will switch the direction of the inequality since you are dividing by a negative and your answer will be

  x ≥ -2

• divide by -2 on both sides and your answer will be

  x ≤ -2

- 3x < -12

• divide both sides by -3 and your answer is

  x < 4

• x = 4

• divide both sides by -3 and your answer is

  x > 4

  because you divided by a negative and had to flip the inequality symbol

Convert 31% to a decimal.

• 3.1
• 0.031
• 0.31
• 310

What is 40% of 10?

• 2

• 3

• 4

• 400

What is 50% of 88?

• 58

• 46

• 42

• 44