Question

There are two other types of light bulbs available: CFL bulbs and LED bulbs. They have the following characteristics. The factory pays 7 cents per kwh for energy. Find the cost for each bulb type at 0 hours of use and at 10,000 hours of use.

Answer 1

To find the cost for each bulb type at 0 hours of use and at 10,000 hours of use, we need to consider the energy consumption and lifespan of each bulb. The costs can be calculated using the given information.

Step-by-step explanation:

To find the cost for each bulb type at 0 hours of use and at 10,000 hours of use, we need to consider the energy consumption and lifespan of each bulb. Let's calculate the costs using the given information:

• Incandescent bulb: The cost for 0 hours of use is equal to the cost of the bulb, which is 25 cents. The cost for 10,000 hours of use is calculated by multiplying the energy consumption per hour (60 watts) by the cost per kilowatt-hour (7 cents) and then multiplying the result by the number of hours. In this case, the total cost is $42.
• CFL bulb: The cost for 0 hours of use is the cost of the bulb, which is $1.50. The cost for 10,000 hours of use can be calculated similarly, considering the lower energy consumption (15 watts) and longer lifespan (10,000 hours). The electricity cost would be $10.50, and the total cost would be $12.
• LED bulb: The cost for 0 hours of use is the cost of the bulb itself, which depends on the specific LED bulb chosen. The cost for 10,000 hours of use would be the electricity cost, calculated using the energy consumption of the LED bulb (which depends on its wattage) and the cost per kilowatt-hour.

Based on these calculations, you can determine the cost for each bulb type at 0 hours of use and at 10,000 hours of use.