Final answer:
To calculate the total cost Amy paid for the vase, the sale price was first determined by applying a 20% discount to the original price, and then the sales tax was added by calculating 15% of the reduced sale price. Amy paid a total of $851 for the crystal vase after the discount and adding the sales tax.
Step-by-step explanation:
To calculate how much Amy paid for the crystal vase after a 20% off sale and adding a 15% sales tax, we first need to determine the sale price of the vase.
Calculating the Sale Price
The original price of the vase was $925. To find the sale price, we take 20% of $925, which gives us the discount amount. We then subtract this amount from the original price to get the sale price.
- Discount Amount: $925 × 0.20 = $185
- Sale Price: $925 - $185 = $740
Calculating the Total Cost with Sales Tax
Now, we need to calculate the total cost including the 15% sales tax. To do this, we'll find 15% of the sale price and add it to the sale price.
- Sales Tax: $740 × 0.15 = $111
- Total Cost: $740 + $111 = $851
Therefore, Amy paid a total of $851 for the crystal vase including the discount and sales tax.