Question

If typical kitchen appliance uses 450 watts of power per day, about how many kilowatt hours will it use in 30 days?

Answer 1

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Answer 2

324 kilowatt power will be used in 30 days by typical kitchen appliance.

Solution:

Power consumed by kitchen appliance = 450 watts per day

To Find: Calculate the kilowatt hours used in 30 days.

1 day = 24 hours

We need to convert the days into hours,

$30\ days =30 \times 24 = 720\ hours.$

1 Kilowatt = 1000 watt

So in 30 days the kilowatt hours will use = $720 \times 450 = 324000\ watt$

Here we need to convert the power from watt to kilowatt.

As we know that 1 kilowatt = 1000 watt  

324000 watt = 324 kilowatt