Camille Asked:

B If the hair dryer rating is used for 20 mins per day, how many kilowatts-hours per day is this? ( convert 20 mins to hours)
C: find the kilowatts-hours under by that order medicine online hair dryer rating each month (assume 30 days/month)
D: If your town charges $0.15/kWh, what is the cost to use the hair dryer rating per month?

Reply:

B.
Energy/day = 1.2 kw * (1/3)h = 0.4 kwh / day
C.
Energy/month = 0.4kwh/day * 30 day/month = 12kwh / month
D.
Cost/month = 12kwh / month * 0.15 $ / kwh = $1.8