Question

One pen costs 0.25 and one marker costs $0.35. At those prices, what is the total cost of 18 pens and 100 markers? 
 

Hint:

For multi-step calculation problems, break the problem down into smaller, manageable parts. Calculate each part separately and then combine them at the end. This helps to reduce errors and makes the process clearer.

Answer 1

Step 1: Understanding the Concept:
The problem asks for the total cost of two different sets of items. We need to calculate the cost for each set of items separately and then add them together.
Step 2: Key Approach:
1. Calculate the total cost of the 18 pens.
2. Calculate the total cost of the 100 markers.
3. Add the two costs together to find the overall total cost.
Step 3: Detailed Explanation:
Cost of Pens:
The cost of one pen is 0.25 dollars. The total cost for 18 pens is:
Cost of Pens = 18 × 0.25 = 4.50
Cost of Markers:
The cost of one marker is 0.35 dollars. The total cost for 100 markers is:
Cost of Markers = 100 × 0.35 = 35.00
Total Cost:
The total cost is the sum of the cost of the pens and the markers:
Total Cost = 4.50 + 35.00 = 39.50
Step 4: Final Answer:
The total cost of 18 pens and 100 markers is 39.50 dollars.