Question

1 then replaced the old light bulb with a new 7 watt LED light bulb that gives off the same amount oflight. The next time I leave the light on for the same amount of time I will save money because I'm usingless kilowatts. What else am I using less of? Make a claim about something else I am using less of andprovide evidence and reasoning to support your answer. (3 pts) CER

Answer 1

Your using less energy as well. The energy is given by:

`E=Pt`

where P is the power of the bulb and t is the time. In this case the we will use the following amount of energy:

`\begin{gathered} E=(7)(168) \\ E=1176=1.176*10^3=1.176\text{ KWH} \end{gathered}`

Hence we would save energy since we only use 1.176 KWH in this case.