Sara has lived 18.0 years. How many seconds has she lived? Express the answer in scientific notation. Use 365.24 days per year for your calculations.
365.24x18x24x3600=5.68x10^8
To calculate the number of seconds Sara has lived, we need to convert her age in years to seconds.
First, let's convert the number of years Sara has lived to days:
18.0 years * 365.24 days/year = 6574.32 days
Next, we convert the number of days to seconds:
6574.32 days * 24 hours/day * 60 minutes/hour * 60 seconds/minute = 567,052,083.2 seconds
Finally, we express the answer in scientific notation:
567,052,083.2 seconds = 5.670520832 × 10^8 seconds
To determine the number of seconds Sara has lived, we need to consider the number of days in 18 years and then convert it to seconds.
First, let's calculate the number of days in 18 years. We can multiply the number of years (18) by the number of days in a year (365.24):
Number of days = 18 years × 365.24 days/year
Next, let's convert the number of days to seconds. Since there are 24 hours in a day, 60 minutes in an hour, and 60 seconds in a minute, we can multiply the number of days by 24 × 60 × 60:
Number of seconds = (Number of days) × 24 × 60 × 60
Now let's calculate it step by step:
Number of days = 18 × 365.24 = 6574.32 days
Number of seconds = 6574.32 × 24 × 60 × 60
Using a calculator or performing the calculation manually, we find that Sara has lived approximately 5.204064512 × 10^8 seconds.
Therefore, the answer in scientific notation is 5.204064512 × 10^8 seconds.