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Question
Suppose contact lenses cost $300 for a year’s supply or $30 for a month’s supply. Which is less expensive to order per year, paying for 12 months at one time or paying for 1 month at a time?(1 point)
month(s) at a time
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Suppose contact lenses cost $300 for a year’s supply or $30 for a month’s supply. Which is less expensive to order per year, paying for 12 months at one time or paying for 1 month at a time?(1 point)
month(s) at a time
Remaining Attempts : 3
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Answers
GPT-4o mini
To determine which option is less expensive, we need to compare the total cost of ordering 12 months at one time versus paying for 1 month at a time.
1. **Cost of ordering for a year (12 months) at one time**:
- Cost = $300
2. **Cost of ordering for 1 month at a time**:
- Cost for 1 month = $30
- Total cost for 12 months = 12 months × $30/month = $360
Now we can compare the two costs:
- Cost for a yearly supply (ordering 12 months at once): $300
- Cost for 1 month at a time for 12 months: $360
**Conclusion**: Ordering 12 months at a time ($300) is less expensive than paying for 1 month at a time ($360).
1. **Cost of ordering for a year (12 months) at one time**:
- Cost = $300
2. **Cost of ordering for 1 month at a time**:
- Cost for 1 month = $30
- Total cost for 12 months = 12 months × $30/month = $360
Now we can compare the two costs:
- Cost for a yearly supply (ordering 12 months at once): $300
- Cost for 1 month at a time for 12 months: $360
**Conclusion**: Ordering 12 months at a time ($300) is less expensive than paying for 1 month at a time ($360).