Answer :

luana
[tex]1\ hour\ contain\ 3600\ seconds\\\\ 3,14\ hour\ contain\ x\ seconds\\\\ Write\ it\ as\ ratio:\\\\ 1-3600\\ 3,14-x\\Cross\ multiplication:\\\\ x=3600*3,14= 11304\ seconds\\\\ In\ 3,14\ hours\ are\ 11304\ seconds.[/tex]