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NAME:
A room has a 60 Watt, a 100 Watt and a 150 Watt light bulb. How much does it
cost to use all the lamps for 2.5 hours at $0.08/ kWh?
E-60

Respuesta :

Answer:

$ .0248      or   2.48 cents

Explanation:

60 + 100 + 150 = 310 watts

  for one hour  =  310 watt- hr    or    .31 kw- hr

      .31 kw-hr   *  .08 / kw-hr  =  .0248

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