Question

May someone help me with #6 as soon as possible?

Answer 1

I hope you can understand what everything said i couldn't do like exponents and stuff

Answer: The cost is = $4.22

Explanation:

The current is I =8A

The voltage is U=110V

The power is P=UI=110⋅8=880W

The time per month is t = 5 h

The power consumption per month is Pm = P⋅ t =880⋅5 = 4400Wh

The power consumption per year is P y = P m ⋅ 12 = 4400 ⋅ 12 = 52800 W h = 52.8 k W h

Cost of electricity is c = 0.08 $ per kWh

Annual cost is c a = P y ⋅ c = 52.8 ⋅ 0.08 = 4.22 $