Mathematics, 10.06.2020 15:57 bailey1025

electricity has two different rates off peak is 10pm to 6am and charged at 8p per hour. peak is 6am to 10pm and is charged at 12p per hour. alison turns uses electricity from 8pm to 11:30 pm. what is the dost of her electricity for that period

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electricity has two different rates off peak is 10pm to 6am and charged at 8p per hour. peak is 6am...