Respuesta :

AL2006

(25 watts)·(1 kw/1000 watts)·(1 year)·(365 day/year)·(24 hr/day)·(8¢ / kw-hr)

= (25·1·1·365·24·8) / (1000)   (watts-kw-year-day-hour-¢ / watts-year-day-kWh)

= (1,752,000) / (1000)          ¢

=      $ 17.52