Your utility company charges 13 cents per kilowatt-hour of electricity. What is the daily cost of keeping lit a 100 -watt light bulb for 13 hours each day

16.9 cents

Step-by-step explanation:

We are given the following information;

Charge per kWh is 13 cents A bulb of a 100 Watt Number of hours in use 13 hours a day

Required to determine the daily cost of operating the bulb;

First, we will need to calculate the number kilowatts

Note: 1 kW = 1000 W

Power needed = (100 watt * 13 hours) : 1000

= 1.3 kWh

But;

1 kWh = 13 cents

Therefore;

Cost = 1.3 kWh * 13 cents per kWh

= 16.9 cents

Thus; the daily cost of operating the bulb is 16.9 cents