If a 4000 watt oven is on for 5 hours, then how many kilowatt-hours (kw-hrs) of energy are used?

If a 4000 watt oven is on for 5 hours, then how many kilowatt-hours (kw-hrs) of energy are used?

Solution: We are given that the oven is 4000 watt and it is on for 5 hours.

We have to find the how many kilowatt-hours (Kw-hrs) of energy are used by the oven.

We first need to convert watts into kilowatt's. We know that:

Therefore, 4000 Watts

Now, we can find how many kilowatt-hours (Kw-hrs) of energy are used by the oven.

Energy used by the oven Kw-hrs

Therefore, 20 kilowatt-hours (kw-hrs) of energy are used by the oven.

correct answer is option b.

step-by-step explanation:

the true statement about geometric figure is option b that is one line can be drawn through all three points.

if three points are on the same plane, they can be connected by a line.