Guys please help me. Im having trouble with this ya. Makasih semua (sains) kiraan
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Jawaban:
To calculate the cost of using electricity for the month of May, we need to determine the total energy consumption in kilowatt-hours (kWh) and then multiply it by the cost per kWh.
First, let's calculate the energy consumption per day:
Energy consumption per day = Power of the television (in watts) * Hours of usage per day
Energy consumption per day = 150 W * 4 hours = 600 Wh
To convert the energy consumption to kilowatt-hours:
Energy consumption per day (kWh) = Energy consumption per day (Wh) / 1000
Energy consumption per day (kWh) = 600 Wh / 1000 = 0.6 kWh
Since Faridah uses the television for the entire month of May, we can calculate the total energy consumption for May:
Total energy consumption for May = Energy consumption per day (kWh) * Number of days in May
Total energy consumption for May = 0.6 kWh * 31 days = 18.6 kWh
Now, let's calculate the cost of electricity for May:
Cost of electricity for May = Total energy consumption for May * Cost per kWh
Cost of electricity for May = 18.6 kWh * RM0.22 = RM4.092
Therefore, the cost of using electricity for the month of May when Faridah uses a 150 W LCD television for 4 hours a day is approximately RM4.09.
The answer is C) RM4.09.