Question

central air conditioner uses 4.5 kilowatts. It runs for 5 hours over the course of a day. How much energy does the air conditioner use during that day? 9.5 kilowatt-hours 0.5 kilowatt-hours 0.9 kilowatt-hours 22.5 kilowatt-hours

Answer 1

See below.

Step-by-step explanation:

That would be 4.5 * 5 = 22.5 kilowatt hours.

Answer 2

Energy = (power) x (time)

Energy = (4.5 kW) x (5 hours)

Energy = (4.5 x 5) kW-h

Energy = 22.5 kW-h