Final answer:
Each hot dog costs $3.89.
Step-by-step explanation:
Finding the cost per hot dog in detail:
Step 1: Setting Up the Calculation
We are given that Serene paid $35.01 for 9 hot dogs. We need to find the cost of each hot dog. We can represent the cost per hot dog as x.
Step 2: Translating the Problem into an Equation
The total cost is the product of the number of hot dogs and the cost per hot dog. We can write this as an equation:
Total cost = Number of hot dogs × Cost per hot dog
or
35.01=9 × x
Step 3: Solving for the Cost per Hot Dog
We need to isolate x to find the cost per hot dog. Dividing both sides of the equation by 9, we get:
x = $35.01 / 9
Step 4: Calculating the Cost per Hot Dog
Performing the division, we find:
x = $3.89
Step 5: Conclusion
Therefore, each hot dog cost $3.89.