Question

Киловатт-час электроэнергии стоит 3 рубля 10 копеек. Счётчик электроэнергии 1 июля показывает 8637 киловатт-часов,а 1 августа-8805 килловат-часов.Какую сумму (в рублях)нужно заплатить за использование электроэнергии в июле?

Answer 1

Решение на фото, которое прикреплено

Answer 2

Calculation of Electricity Usage in July

To calculate the amount to be paid for electricity usage in July, we need to find the difference between the meter readings on July 1st and August 1st and multiply it by the cost per kilowatt-hour.

The meter reading on July 1st is 8637 kilowatt-hours, and on August 1st, it is 8805 kilowatt-hours Therefore, the difference in electricity usage during July is:

8805 kWh - 8637 kWh = 168 kWh

To calculate the cost of this electricity usage, we need to multiply the number of kilowatt-hours by the cost per kilowatt-hour. In this case, the cost per kilowatt-hour is 3 rubles and 10 kopeks.

Let's convert the cost per kilowatt-hour to rubles for simplicity. 10 kopeks is equal to 0.1 rubles. Therefore, the cost per kilowatt-hour is 3.1 rubles.

Now, we can calculate the total cost for the electricity usage in July:

168 kWh * 3.1 rubles/kWh = 521.6 rubles

Therefore, the amount to be paid for electricity usage in July is 521.6 rubles.

Please note that the information provided is based on the given data and the assumption that the cost per kilowatt-hour remains constant throughout the month.