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?
To determine which option is less expensive, we need to calculate the cost of ordering per year for each option.
If you pay for a year's supply at one time, the cost is $300 per year.
If you pay for a month's supply at a time, the cost is $30 per month. To calculate the cost for a year, we multiply this monthly cost by 12 (the number of months in a year). Therefore, the cost of ordering per year is $30/month * 12 months = $360.
Therefore, paying for a year’s supply at one time for $300 is less expensive than paying for a month’s supply at a time for $360 in total.
To determine which option is less expensive, we need to calculate the total cost of each option for a year.
Option 1: Paying for 12 months at one time
The cost for a year's supply of contact lenses is $300.
Option 2: Paying for 1 month at a time
The cost for a month's supply of contact lenses is $30.
To calculate the cost for a year, we multiply the cost per month by the number of months in a year:
$30 x 12 = $360
Comparing the two options:
- Paying for 12 months at one time: $300
- Paying for 1 month at a time: $360
Therefore, paying for 12 months at one time is the less expensive option.
To determine which option is less expensive, we can compare the cost of ordering contact lenses for a year's supply in two different ways: paying for 12 months at one time or paying for 1 month at a time.
Option 1: Paying for 12 months at one time:
If the contact lenses cost $300 for a year's supply, this means that you would pay a total of $300 for the lenses if you order them for a whole year at once.
Option 2: Paying for 1 month at a time:
If the contact lenses cost $30 for a month's supply, this means that if you order contact lenses for each month individually, you would pay $30 for each month.
To calculate the total cost for ordering for 1 year by paying for 1 month at a time, multiply the monthly cost by the number of months in a year, which is 12:
$30 x 12 months = $360.
Comparing the two options:
- Paying for 12 months at one time: $300
- Paying for 1 month at a time: $360
From the comparison, we can see that paying for 12 months at one time is less expensive than paying for 1 month at a time. Therefore, it is more cost-effective to order contact lenses for a year's supply by paying for 12 months at one time.