Question

There are approximately 110 million TVs in the United States. Each uses, on average, 80 W of power and is turned on for 5.9 hours a day. If electrical energy costs 0.11 dollars per kWh, how much money is spent every day in keeping the TVs turned on?

Answer 1

80•110•10⁶•5.9 =5.192•10¹⁰ W=5.192•10⁷ kWh,
5.192•10⁷•0.11=5.71•10⁶ dollars