Answer:
After comparing these two discounts with their minimal amounts (3,000 and 1,500) a customer will save exactly the same amount: US$ 600.
Explanation:
1. Let's review the information given to us for solving the question:
Discount given by the local appliance store for entire purchases ≥ US$ 3,000 = 20% off
Discount given by the local appliance store for single items ≥ US$ 1,500 = 40% off
2. Let's calculate which offer will save most money on these appliances
A. Discount for entire purchases≥ US$ 3,000
Discount = Purchase * 20% off
Discount = 3,000 * 20% = 3,000 * 0.2 = 600
If a customer purchases US$ 3,000 on an entire purchase of several items, he or she will save US$ 600
B. Discount for single items ≥ US$ 1,500
Discount = Purchase * 40% off
Discount = 1,500 * 40% = 1,500 * 0.4 = 600
If a customer purchases a single item of US$ 1,500, he or she will save US$ 600
C. Conclusion: After comparing these two discounts with their minimal amounts (3,000 and 1,500) a customer will save exactly the same amount: US$ 600.