An electric heater has two power settings .One Setting is 0.5kW and the other is 1.5kW One Kwh Of Electricity Cost 11 Pence . Ca
lculate how much you would save if you used the heater 12 hours on the 0.5 setting Instead of the 1.5kW Setting
1 answer:
Lo siento muchísimo, no lo sé 12
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Step-by-step explanation:
B is the answer
for the same x you could not have diferent y