Question

Sue, of Sue’s Sandwiches, sells sandwiches and soda from a sidewalk cart in a popular park near her house. She sets up her cart in the summers to earn money for college tuition. Last month she sold $1,240 worth of product (sandwiches and sodas) to 100 customers. She spent $210 on the sandwich ingredients and buying the sodas wholesale. Her unit is one sandwich ($4) plus one soda ($1). Define the unit of sale and calculate the economics of one unit for Sue’s Sandwiches.

Answer 1

To define the unit of sale and calculate the economics for Sue’s Sandwiches, we can follow these steps:

### Step 1: Define the Unit of Sale

In this case, the unit of sale is one **sandwich and one soda**. The combined price for one sandwich and one soda is:

- Price of one sandwich = $4
- Price of one soda = $1

\[
\text{Total price for one unit (one sandwich + one soda)} = 4 + 1 = 5
\]

### Step 2: Calculate Total Sales and Number of Units Sold

Last month, Sue sold a total of **$1,240 worth of products** to **100 customers**.

To find out how many units she sold, we use the price of one unit:

\[
\text{Total number of units sold} = \frac{\text{Total sales}}{\text{Price per unit}} = \frac{1240}{5} = 248 \text{ units}
\]

### Step 3: Calculate Total Costs

Next, we need to calculate the total costs involved in selling those units. Sue spent **$210** on ingredients and sodas.

### Step 4: Calculate Profit

Now, we can calculate the total profit by subtracting total costs from total sales:

\[
\text{Profit} = \text{Total Sales} - \text{Total Costs}
\]

Substituting in the values:

\[
\text{Profit} = 1240 - 210 = 1030
\]

### Summary of Sue's Sandwiches Economics

- **Unit of Sale**: 1 Sandwich + 1 Soda
- **Price per Unit**: $5
- **Total Units Sold**: 248 units
- **Total Sales**: $1,240
- **Total Costs**: $210
- **Total Profit**: $1,030

This breakdown provides a clear understanding of the economics behind Sue's Sandwiches for the month in question.