Question

1. Evaluate an algebraic expression of 8x - y for the given values of x = 3

and y = 4.

a. 29

b. 25

c. 24

d. 20

2. Evaluate an algebraic expression 6x - y for the given values x = 3 and

y = 8.

a. 10

b. 26

c. 18

d. 8

3. 3 times of the “m” minus 7.

a. 3(m−7) 3(m-7)

b. (3m−7) (3m-7)

c. (3−m) (3-m)

d. 3m − 7

4. N stands for the number of stamps John had. He gave 12 stamps to his

sister. Which expression tells how many stamps John has now?

a. N + 12

b. N−12

c. 12 - N

d. 12 x N

5. Write the statement for an algebraic expression 4x+8.

a. 4 more than 8 times a number x

b. 8 less than 4 times a number x

c. 8 more than 4 times a number x

d. 4 less than 8 times a number x
6. Evaluate 12(x – t), if x = 7 and t = 2.

a. 17

b. 168

c. 60

d. 82

7. Which is the best definition for coefficient?

a. A letter that represents a number

b. An expression with 2 terms

c. A number that multiplies with a variable

d. A combination of letters (and/or) numbers being multiplied

8. Identify an equivalent expression of 3(x + y).

a. x + y

b. 3x + y

c. x + 3y

d. 3x + 3y

9. x minus twenty divided by two times x

a. x−

-



-



b. -



-



− 20

c. 20 − -



-



d. -



-



– x

10. Evaluate K + 10 when K = 25.

a. 25

b. 10

c. 3

d. 35​

Answer 1

Answer:

1. a

2. d

3. a

4.c

5. b

6. d

7. a

8.c

9. b

10. a

Answer 2

$\sf\Large{\underline{\underline{Required \: Answer:-}}}$

1. Evaluate an algebraic expression of 8x - y for the given values of x = 3 and y = 4.

a. 29

b. 25

c. 24

d. 20 ✔︎

Explaination:-

we know,

• x = 3
• y = 4

Therefore, put down the Values in respective places.

$\begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{8x - y}\:}}\end{gathered} \\ \: \: \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{8(3) - 4}\:}}\end{gathered} \\ \: \: \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{24 - 4}\:}}\end{gathered} \\ \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{20}\:}}\end{gathered}$

⠀━━━━━━━━━━━━━━━━━━━━━━━━

2. Evaluate an algebraic expression 6x - y for the given values x = 3 and y = 8.

a. 10 ✔︎

b. 26

c. 18

d. 8

Explaination:-

We know,

• x = 3
• y = 8

Therefore, put down the Values in respective places.

$\begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{6x - y}\:}}\end{gathered} \\ \: \: \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{6(3) - 8}\:}}\end{gathered} \\ \: \: \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{18 - 8}\:}}\end{gathered} \\ \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{10}\:}}\end{gathered}$

⠀⠀━━━━━━━━━━━━━━━━━━━━━━━

3. 3 times of the “m” minus 7.

a. 3(m−7) 3(m-7)

b. (3m−7) (3m-7)

c. (3−m) (3-m)

d. 3m − 7 ✔︎

Explaination:-

• 3 times of m which means '3m' .
• So, the equation will be 3m – 7.

⠀━━━━━━━━━━━━━━━━━━━━━━━━━

4. N stands for the number of stamps John had. He gave 12 stamps to his sister. Which expression tells how many stamps John has now?

a. N + 12

b. N−12 ✔︎

c. 12 - N

d. 12 x N

Explaination:-

Given,

• Number of stamps with John is 'n'
• He gave 12 stamps to his sister.
• So, equation formed = N – 12.

⠀━━━━━━━━━━━━━━━━━━━━━━━━━

5. Write the statement for an algebraic expression 4x+8.

a. 4 more than 8 times a number x

b. 8 less than 4 times a number x

c. 8 more than 4 times a number x ✔︎

d. 4 less than 8 times a number x

Explaination:-

• '4x' means 4 times a number x, and 8 more is added to it.
• So, the statement formed is 8 more than 4 times a number x.

⠀

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6. Evaluate 12(x – t), if x = 7 and t = 2.

a. 17

b. 168

c. 60 ✔︎

d. 82

Explaination:-

We know,

• x = 7
• t = 2

Therefore, put down the Values in respective places.

$\begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{12(x - t)}\:}}\end{gathered} \\ \: \: \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{12(7 - 2)}\:}}\end{gathered} \\ \: \: \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{12 \times 5}\:}}\end{gathered} \\ \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{60}\:}}\end{gathered}$

⠀━━━━━━━━━━━━━━━━━━━━━━━━━━

7. Which is the best definition for coefficient?

a. A letter that represents a number

b. An expression with 2 terms

c. A number that multiplies with a variable .✔︎

d. A combination of letters (and/or) numbers being multiplied.

⠀━━━━━━━━━━━━━━━━━━━━━━━━━━

8. Identify an equivalent expression of 3(x + y).

a. x + y

b. 3x + y

c. x + 3y

d. 3x + 3y ✔︎

⠀━━━━━━━━━━━━━━━━━━━━━━━━━

9. x minus twenty divided by two times x

Answer :

$\begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{\dfrac{x - 20}{2x}\:}}\end{gathered}$

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10. Evaluate K + 10 when K = 25.

a. 25

b. 10

c. 3

d. 35 ✔︎

Given,

• k + 10
• when K = 25

$\begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{k + 10}\:}}\end{gathered} \\ \: \: \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{25 + 10}\:}}\end{gathered} \\ \: \: \: \: \: \: \begin{gathered}\\\;\sf{:\rightarrow\;\;\;\bf{{35}\:}}\end{gathered}$