Question

your email will be recorded when you submit this form indicates required question what is that sound? are those the announcements? this metric prefix means 1/10 or (one tenth) your answer convert 13000 seconds to hours. *

Explanation:

Step1: Recall metric - prefix for one - tenth

The metric prefix for one - tenth is deci, abbreviated as "d".

Step2: Recall conversion factors for time

We know that 1 hour = 60 minutes and 1 minute = 60 seconds. So 1 hour=60×60 = 3600 seconds.

Step3: Convert seconds to hours

To convert 13000 seconds to hours, we use the formula $h=\frac{s}{3600}$, where $h$ is the number of hours and $s$ is the number of seconds. So $h=\frac{13000}{3600}=\frac{65}{18}\approx3.61$ hours.

Answer:

The metric prefix is deci.
13000 seconds is $\frac{65}{18}\approx3.61$ hours.