To calculate the total cost of your grocery purchases, follow these steps:
Step 1: Calculate the cost of each item.
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Cheese: \[ 0.5 , \text{lb} \times 2.99 , \text{USD/lb} = 1.495 , \text{USD} \text{ (rounded to } 1.50 \text{ USD)} \]
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Sliced Ham: \[ 2 , \text{lbs} \times 4.29 , \text{USD/lb} = 8.58 , \text{USD} \]
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Bread: \[ 2 , \text{loaves} \times 2.49 , \text{USD/loaf} = 4.98 , \text{USD} \]
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Potato Chips:
- Cost for 3 bags = 3.00 (2 for $3) + 1.99 (1 bag) = 4.99 USD
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Salsa: \[ 2 , \text{containers} \times 3.39 , \text{USD/container} = 6.78 , \text{USD} \]
Step 2: Total Cost Before Tax
Sum all the item costs: \[ 1.50 + 8.58 + 4.98 + 4.99 + 6.78 = 26.83 , \text{USD} \]
Step 3: Calculate Sales Tax
Sales tax at 4% on the total: \[ 26.83 , \text{USD} \times 0.04 = 1.0732 , \text{USD} \text{ (rounded to } 1.07 \text{ USD)} \]
Step 4: Total Cost After Tax
\[ 26.83 + 1.07 = 27.90 , \text{USD} \]
Step 5: Apply Coupons
Since the total ($27.90) is more than $25.00, you can use the $3.00 coupon: \[ 27.90 - 3.00 = 24.90 , \text{USD} \]
Summary of Total Purchases:
The total cost of your grocery purchases after tax and the coupon is $24.90.