Use an arithmetic method (break the problem into smaller steps using only numbers and operations) to find the cost of each pen. Show your work and explain the sequence of operations.

Answer 1

To solve the problem of finding the cost of each pen using an arithmetic method, we first need to have information about the total cost and number of pens. Let's assume we have the following information:

• Total cost of pens = $30
• Number of pens = 10

The goal is to find the cost of each pen.

Step 1: Identify the total cost and number of pens.

• Total cost of all pens = $30
• Number of pens = 10

Step 2: Write the equation to find the cost of each pen. The cost of each pen can be determined by dividing the total cost by the number of pens. The equation can be written as: \[ \text{Cost of each pen} = \frac{\text{Total cost}}{\text{Number of pens}} \]

Step 3: Substitute the known values into the equation. \[ \text{Cost of each pen} = \frac{30}{10} \]

Step 4: Perform the division. Now, we divide 30 by 10: \[ 30 \div 10 = 3 \]

Conclusion: The cost of each pen is $3.

Summary of Operations:

1. Set up the total cost ($30) and the number of pens (10).
2. Use the formula for cost per pen: Cost per pen = Total cost / Number of pens.
3. Substitute the known values into the formula.
4. Perform the division to find the result.

Thus, each pen costs $3.