Question

СРОЧНО 100 БАЛОВ СРОЧНО В квартирі 2 люстри по 10 лампочок і 4 люстри 20лампочок. За електроенергію заплатили 500 гривень за місяць. Обовязково складіть умову і розвязок.

Answer 1

Ответ:внизу

Пошаговое объяснение:

10/2=5

20/4=5

5=50%

500-50%=250грн за месяц с каждой

Answer 2

Problem Statement:

В квартирі є 2 люстри по 10 лампочок і 4 люстри по 20 лампочок. За електроенергію заплатили 500 гривень за місяць. Складіть умову задачі та розв'яжіть її.

Solution:

To solve this problem, we need to determine the total number of light bulbs in the apartment and then calculate the cost per light bulb.

Let's start by calculating the total number of light bulbs in the apartment. We have 2 chandeliers with 10 light bulbs each, which gives us a total of 2 * 10 = 20 light bulbs. Additionally, we have 4 chandeliers with 20 light bulbs each, which gives us a total of 4 * 20 = 80 light bulbs.

The total number of light bulbs in the apartment is 20 + 80 = 100.

Next, we need to calculate the cost per light bulb. We know that the total cost for the electricity bill is 500 гривень, and this amount is for a month.

To find the cost per light bulb, we divide the total cost by the total number of light bulbs:

Cost per light bulb = Total cost / Total number of light bulbs

Cost per light bulb = 500 гривень / 100 light bulbs

Cost per light bulb = 5 гривень per light bulb

Therefore, the cost per light bulb is 5 гривень.

Conclusion:

In conclusion, in the given apartment with 2 chandeliers of 10 light bulbs each and 4 chandeliers of 20 light bulbs each, the total number of light bulbs is 100. The cost per light bulb is 5 гривень.