Answered

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The 60-watt light bulb has a 400 hour life expectency how much will it cost to operate during its time

Sagot :

Manethoidn

Answer:

$2.40

Explanation:

the unit electricity bill is kilo watt hour.

The 60-watt light bulb has a 400 hour life expectency means it will consume

60×400/1000 = 24 KWh units of electricity. Let us suppose each unit of electricity costs is 10 cents.

Then 24×10 = 240 cents  = $2.40

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