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Utility rate per kilowatt hour

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    Utility rate per kilowatt hour

    The electric utility provider charges 15.088 cents per kilowatt hour of electricity. In a month a customer uses 236 kilowatt hours of electricity, how much is the customer charged?


    $356.08

    $35.61

    $3.56

    $0.36

    $0.04


    unless i am doing the math wrong (236 / 0.15088) = 1,564.156

  2. #2
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    Quote Originally Posted by rmr660 View Post
    The electric utility provider charges 15.088 cents per kilowatt hour of electricity. In a month a customer uses 236 kilowatt hours of electricity, how much is the customer charged?


    $356.08

    $35.61

    $3.56

    $0.36

    $0.04


    unless i am doing the math wrong (236 / 0.15088) = 1,564.156
    0.15088 x 236 = 35.60768

  4. #3
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    Jul 2020
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    Try keeping all units when doing math

    Quote Originally Posted by Sanjayo View Post
    0.15088 x 236 = 35.60768
    I try and keep all units when doing math so I don't divide when I should multiply and vice versa. For this example;

    $0.15088/kW-Hr * 236 kW-Hr = $35.61

    You can see that the "kW-Hr" in the $0.15088/kW-Hr cancels the "kW-Hr" in the 236 kW-Hr so all you are left with is $. If you divide, the "kW-Hr" becomes squared and the answer is $1,564.16/kW-Hr^2 which does not make any sense.

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