Question

An event last 3 hours and 15 minutes. How long did the event last in seconds?

Answer 1

Okay to you first want to turn the hours to minutes

1 hour = 60 minutes

3 * 60 = 180

180 (3 hours to minutes)+15 (minutes) = 195 minutes total

Now you want to convert the minutes to seconds

1 minute = 60 seconds

195*60 = 11,700 seconds

Answer 2

Or more simply

\(\frac{3.15 hours}{}\cdot\frac{60 minutes}{\cancel{1 hour}}\cdot\frac{60 seconds}{\cancel{1 minute}}=>\)