Tim's electricity costs 4.3 ¢ a kilowatt hour or 100 watts. How much will it cost to run the following appliances for 10 hours? (round to the nearest cent) a Dryer @ 4,000 watts. Cost = a Heater @ 1,500 watts. Cost = a Radio @ 40 watts. Cost =

First, let's check the amount of power consumed by each of the appliances for 10 hours. The calculated values are shown below.

Dryer = (4000 watts per hour) (10 hours) = 40000 watts or 40 kW

Heater = (1500 watts per hour) (10 hours) = 15000 watts or 15 kW

Radio = (40 watts per hour) (10 hours) = 400 watts or 0.40 kW

Now, adding the total consumed by the three appliances for 10 hours, we have

Total = 40 + 15 + 0.40 = 55.40 kW

Since we now have the total power consumed, and given that electricity costs 4.30 cents per kWh, we have

Cost = 55.40 (4.30) = 238.22 cents

Rounding off the cost to the nearest cents, we have a total amount of 238 cents for the total electricity cost.

Answer: 238 cents