Quiz 3 Review

Solve for a:

-3a + 8 = 14

• a = -2

• a = -7.5

• a = 2

• a = 6

-4x + 14 ≤ 54

• x ≥ - 10
• x ≤ -10
• x ≥ 10
• x ≤ 10

What is the probability of landing on the color blue on the spinner?

• 3/3
• 1

• 3/12 or 1/4
• 3/9 or 1/3

What is the probability of the spinner landing on red?

• 5/12
• 7/12

• 5/5
• 5/10 or 1/2

A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 3/9

• 1/10

• 1/9

A box contains 4 red pencils, 6 blue pencils, 5 black pencils, and 3 green pencils. The best description of the likelihood of selecting a blue pencil at random from the box is ​​​ (a)   . ​ ​

• unlikely
• impossible
• equally likely
• likely
• certain

14 + (22 - 2) =

• 34
• 37
• 40

20 x 2 - (10 - 4)

• 22
• 30
• 34

(23 + 24) -10 =

• 37
• 27
• 47

(2 x 5) + 18

• 48
• 20
• 28