The 12-cans-for-$9 option is the better buy with a unit price of $0.75 per can, compared to the $0.83 per can for the 18-cans-for-$15 option.
To determine the better buy between 18 cans of cat food for $15 and 12 cans for $9, we need to calculate the unit price for each option. The unit price is found by dividing the total cost by the number of cans.
For the first option, the unit price is $15/18 cans, which simplifies to approximately $0.83 per can.
For the second option, the unit price is $9/12 cans, which simplifies to $0.75 per can.
Comparing the unit prices, it's evident that the second option provides a lower cost per can, making it the better buy. Each can in the second option costs $0.75, while each can in the first option costs $0.83.
In conclusion, based on the unit price analysis, the better buy is the option with 12 cans for $9, as it offers a lower cost per can compared to the option with 18 cans for $15.
The question probable may be:
Which is the better buy 18 cans of cat food for $15 or 12 cans for $9?