# Translating a Phrase Into a Two-Step Expression Online Quiz

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Q 1 - Write a two-step expression to represent the real world situation.

Hint: Use x to represent an unknown quantity

What is the total amount of the cost of five baseball bats plus $24 taxes?

### Answer : A

### Explanation

**Step 1:**

Let cost of baseball bat = x

Cost of 5 baseball bats = 5x

Taxes = $24

**Step 2:**

Total amount = $(5x + 24)

Q 2 - Write a two-step expression to represent the real world situation.

Hint: Use x to represent an unknown quantity.

Ronnie sold half of his books and purchased 12 more. What is the number of books with him now?

### Answer : C

### Explanation

**Step 1:**

Let number of books with Ronnie = x

Books sold = x/2

**Step 2:**

Books remaining = x - x/2 = x/2

Books purchased = 12

Books with Ronnie now = x/2 + 12

Q 3 - Write a two-step expression to represent the real world situation.

Hint: Use x to represent an unknown quantity.

Mason is two years younger than one-third Jack’s age. What is Mason’s age?

### Answer : D

### Explanation

**Step 1:**

Let Jack’s age = x

one-third Jack’s age = x/3

**Step 2:**

Mason’s age = (x/3 – 2) years

Q 4 - Write a two-step expression to represent the real world situation.

Hint: Use x to represent an unknown quantity.

What is the amount $21 more than the cost of 6 scissors?

### Answer : B

### Explanation

**Step 1:**

Let cost of a scissor = x

cost of 6 scissors = 6x

**Step 2:**

Amount $21 more than cost of 6 scissors = $(6x + 21)

Q 5 - Write a two-step expression to represent the real world situation.

Hint: Use x to represent an unknown quantity.

There is $15 discount on the purchase of two shirts. What is the amount to be paid?

### Answer : C

### Explanation

**Step 1:**

Let cost of one shirt = x

Cost of two shirts = 2x;

**Step 2:**

Discount = $15

Amount to be paid = $(2x – 15)

Q 6 - Write a two-step expression to represent the real world situation.

Hint: Use x to represent an unknown quantity.

What is the sum of any four consecutive whole numbers?

### Answer : A

### Explanation

**Step 1:**

Let one whole number be = x

The next three consecutive whole numbers would be then, x + 1, x + 2, and x + 3

**Step 2:**

So the sum of 4 consecutive whole numbers

would be = x + x + 1 + x +2 + x + 3 = 4x + 6

Q 7 - Write a two-step expression to represent the real world situation.

Hint: Use x to represent an unknown quantity.

Jian had $18 after buying seven notebooks. What was the total amount she had?

### Answer : D

### Explanation

**Step 1:**

Let cost of one notebook = x

Cost of seven notebooks = 7x

**Step 2:**

The amount Jian had = $(7x + 18)

Q 8 - Write a two-step expression to represent the real world situation.

Hint: Use x to represent an unknown quantity.

Laura needs $8 more to buy five pencils. What is the amount Laura having?

### Answer : B

### Explanation

**Step 1:**

Let cost of one pencil = x

Cost of five pencils = 5x

**Step 2:**

Amount Laura is having = $(5x – 8)

Q 9 - Write a two-step expression to represent the real world situation.

Hint: Use x to represent an unknown quantity.

Monica is two years younger than thrice Dorothy’s age. What is Monica’s age?

### Answer : C

### Explanation

**Step 1:**

Let Dorothy’s age = x

Thrice Dorothy’s age = 3x

**Step 2:**

Monica’s age = 3x – 2 years

Q 10 - Write a two-step expression to represent the real world situation.

Hint: Use x to represent an unknown quantity

Cathy has 12 toy cars more than thrice Julie’s toy cars. How many toy cars does Cathy have?

### Answer : A

### Explanation

**Step 1:**

Let the number of toys with Julie = x

Thrice the number of toys with Julie = 3x

**Step 2:**

Number of toys with Cathy = 3x + 12