– Gas central heating is used for 5 days, using 102 kWh of energy. If 1 kWh of gas costs 7p, calculate the cost of using the central heating

Question

– Gas central heating is used for 5 days, using 102 kWh of energy. If 1 kWh of gas costs 7p, calculate the cost of using the central heating –

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Calantha 1 week 2021-07-21T21:32:42+00:00 1 Answers 3 views 0

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    2021-07-21T21:33:58+00:00

    Answer:

    Explanation:

    Given that,

    Gas central heating was used for 5days

    At a rate of 102kWh of energy

    Then, 1 kWh = 7p

    So,

    The total time is 5days

    t = 5days

    1 day = 24hours

    Then, t = 5days = 5 × 24 = 120hours

    Given 102kWh, then, they consumers 102 kW in one hour, then, for the 120hours,

    The total energy used is 102 × 24

    Then, total energy = 2448 kWh

    So, 1 kWh = 7p,

    Then, 2448 kWh = 7 × 2448

    2448 kWh = 17,136 p.

    So, the cost of the using central heat is 17,136 p

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