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bgallman153p71edg
07.10.2019 •
Mathematics
A220-watt microwave is used an average of two hours a day. find the cost of using the microwave for two weeks at a cost of $0.12 per kilowatt-hour. $105.60 $0.74 $0.11 $739.20
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Ответ:
$0.74
Step-by-step explanation: First, find the watts used per day. 220 x 2 = 440 Wh. Then find the watt-hours used for two weeks. 440 Wh x 14 = 6160 Wh. Convert Wh to kWh. 6160 Wh (1 kWh/1000 Wh) = 6.16 kWh. Calculate the cost. 6.16 kWh x $0.12 = $0.74
Ответ:
Its $739.20
Step-by-step explanation:
Take 220 and multiply it by the 2 hours. Then take the product of that and multiply it by 14-2 weeks. After that, do the product of that times 0.12 and you have your answer. Hope that helped. Let me know of you got confused.
Ответ: