Final answer:
To determine the number of bracelets Melanie sold at the craft fair, you need to use the equation: Profit = Total Revenue - Total Cost. By calculating the total cost and total revenue, you can write the equation to determine the number of bracelets Melanie sold.
Step-by-step explanation:
To determine the number of bracelets Melanie sold at the craft fair, we can use the equation:
Profit = Total Revenue - Total Cost
First, let's calculate the total cost:
Total Cost = Fee + Supplies
Total Cost = $25 + $75 = $100
Now, let's calculate the total revenue:
Total Revenue = Price per Bracelet * Number of Bracelets
- Profit = $230
- Price per Bracelet = $7.50
Total Revenue = $7.50 * Number of Bracelets = $7.5x
Finally, we can write the equation to determine x, the number of bracelets Melanie sold:
$7.5x = $230 - $100
$7.5x = $130
x = $130 / $7.5
x ≈ 17.3
Since the number of bracelets must be a whole number, we can round x down to 17.
Therefore, the correct equation to determine the number of bracelets Melanie sold at the craft fair is: B. 230 = 7.5x + 100