Mathematics

7 June, 06:19

If a space heater draws 10 amps from a 120-volt household circuit, and electricity costs 100 per

kilowatt-hour, how much has it cost to run the space heater for 3 hours? Note that a watt-hour is

equal to 1 watt of power used for one hour.

A. $0.12

B. $0.36

C. $1.20

D. $3.60

E. $4.28

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