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Natan turned on the stove but then forgot he was going to cook until it had been on for half an hour. How much will his forgetfulness cost on his electric bill if his stove uses 1.2 kW of electricity at the setting he used, and his utility charges him $0.18 per kW*h (kilowatt*hour) used?'

Respuesta :

Using proportions, it is found that his forgetfulness cost him $0.108.

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  • He used 1.2 kW for half an hour.
  • The utility charges $0.18 per kW*h (kilowatt*hour), thus, 0.18/2 = $0.09 per kilowatt every half hour.
  • 1.2 kW used, costing $0.09 per kW. Thus:

[tex]T = 1.2 \times 0.09 = 0.108[/tex]

His forgetfulness cost him $0.108.

A similar problem is given at https://brainly.com/question/23536327

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