Question

The expression 2 + 4 ÷ 2 simplifies to 3.
A: True. B: False

2. 17n + 2 is a numerical expression.
A: True. B: False.

3. The Variable expression for the phrase " Two more than x" would be x + 2.
A: True B: False

4. A verbal phrase for "6n - 4" is ______.
A: Four more than six times a number
B: The different of six times a number and four.
C: Four less than six and a number.
D: The product of six and four less than a number.

5. Evaluate (7² -9) ÷ ( 55 - 35).
A: -34
B: 2
C: -4
D: 48

6: The variable expression for the phrase "Two more than a number x) would be x - 2
A: True B: False

7: Find the sum. -5 + ( -1 ) + 6 + 4
A: 7
B: -4
C: 6
D: 4

8: Write the phase "18 more than 4 times a number. " As an algebraic expression.
A: 4 + 18x
B: 4x + 18
C: 4x - 18
D: 4 + x + 18

9: Evaluate 5( 11 + 2² - 10 ) - 19.
A: 106
B: 6
C: 66
D: 44

10: Find the sum -5 + ( 6 ).
A: 1
B: -11
C: 11
D: -1

11: Find the sum of -5 + ( -2 ) + 3 is -6.
A: True B: False
12: Evaluate ( 13² - 2² ) ÷ (5).
A: -15
B: 33
C: 169
D: 170

13: What is the opposite of 8?
A: 8
B: 0
C: 1
D: -8

Answer 1

1. True. 2.yes 3.a.True 4.B 5.

Answer 2

Answer:

Step-by-step explanation:

1). The expression 2 + 4 ÷ 2 = 3 is given while its simplification gives 4

Therefore, Option B. False is the correct option.

2). 17n + 2 is a numerical expression.

Option A. True

3). Variable expression for the phrase " Two more than x " would be (x + 2)

It's A. True

4). A verbal phrase for "6n - 4" is Option B. The difference of six times a number and four.

5).(7² - 9) ÷ (55 - 35)

= (49 - 9) ÷ (20)

= 40 ÷ 20

= 2

Option B is the answer.

6). Variable expression for the phrase " Two more than a number x would be (x - 2)

It should be (x + 2)

Therefore, B. False is the answer.

7). -5 + (-1) + 6 + 4

= -5 - 1 + 6 + 4

= 4

Option D. is the answer

8). " 18 more than 4 times a number"

Algebraic expression will be 4x + 18

Option B. is the answer.

9) 5( 11 + 2² - 10) - 19

= 5(11 + 4 - 10) - 19

= 5(15 - 10) - 19

= 5×5 - 19

= 25 - 19

= 6

Option B. is the answer.

10). -5 + 6 = 1

Option A. is the answer.

11). -5 + (-2) + 3 = -6 is given

-5 + (-2) + 3 = -7 + 3 = 4

Therefore, B. False is the answer.

12). (13² - 2²) ÷ 5

= (169 - 4) ÷ 5

= 165 ÷ 5

= 33

Option B. is the answer.

13).Opposite of 8 means opposite in sign notation

So Option D. -8 is the answer.