It cost $52 to use 800 kWh of electricity. How much will 650 kWh cost?

It cost $52 to use 800 kWh of electricity. How much will 650 kWh cost?

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  1. Hello!

    $52 ….. 800kWh

    $x ….. 650kWh

    _____________

    52/x = 800/650 <=>

    <=> 52 × 650 = 800x <=>

    <=> 33800 = 800x <=>

    <=> 800x = 33800 <=>

    <=> x = 33800/800 <=>

    <=> x = 338/8 <=>

    <=> x = 169/4 <=>

    <=> x = 42,25$

    Good luck! 🙂

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