Areclying plant processes an average of 1/3 ton of glass each minute. at approximately what rate does the recycling plant process glass, in tons per day?

 480 tons per day .

(1/3) ton / 1 minute   =  __?__  ton/ day.

1 day = 24 hours ;

1 hour = 60 minutes;

1 day = ? minutes?

1 day * (24 hr / 1 day) * (60 min. / 1 hr) =   ? minutes ?
   The units of "day" and "hr" cancel out to "1", 
and we are left with: (24 * 60) minutes = 1440 minutes;

 1 day = 1440 minutes (exact value) ;


So, (1/3) ton / 1 minute = ? ton / day?

    [ (1/3) ton / 1 min ] *(1440 min. / day) = [(1/3) * (1440)]  tons / day = 
 
             = (1440 / 3 ) tons / day = 480 tons / day .