Final answer:
The ratio of 15 days to a week is approximately 2.14 to 1, since there are 7 days in a week, and 15 divided by 7 is about 2.14.
Step-by-step explanation:
To find the ratio of 15 days to a week, we first need to understand how many days there are in a week. A standard week consists of 7 days. Therefore, to get the ratio of 15 days to a week, we divide 15 by 7.
The calculation is:
15 days ÷ 7 days = approximately 2.14
So, the ratio of 15 days to a week is approximately 2.14 to 1. This simply means that 15 days is roughly the same as 2 weeks and 1 extra day, since a week is made up of 7 days.