Question

10. Кімната мас розміри 4 х 3,5 м. Скільки дощок ламінату потрiбно для вкладання підлоги в кімнаті, якщо дошка мае розмiри 140 х 20 см? Скільки часу займе робота у вправного майстра, якщо на вкладання одного ряду дощок вiн затрачае 10 хв? допоможіть Пжжж!!!!!!!!​ даю 50 балів

Answer 1

Ответ:

Объяснение:

площадь комнаты 4*3,5 = 14 м2

площадь доски 140*20 = 2800 см2

1м = 100 см

1м2 = 10 000 см2

2800см2 = 0,28 м2 - площадь доски в м2

14/0,28 = 50 досок

50*10 = 500 минут = 6 часов 20 минут

Answer 2

To calculate the number of laminate boards needed to cover the floor of a room, we need to determine the total area of the room and the area covered by each laminate board.

Calculating the number of laminate boards:

The room has dimensions of 4 meters by 3.5 meters, which gives us a total area of 4 * 3.5 = 14 square meters.

The dimensions of each laminate board are given as 140 cm by 20 cm. To convert these dimensions to meters, we divide by 100: 140 cm / 100 = 1.4 meters and 20 cm / 100 = 0.2 meters.

To calculate the area covered by each laminate board, we multiply the length by the width: 1.4 * 0.2 = 0.28 square meters.

To find the number of laminate boards needed, we divide the total area of the room by the area covered by each board: 14 / 0.28 = 50 laminate boards.

Therefore, you would need 50 laminate boards to cover the floor of the room.

Calculating the time required:

If the skilled craftsman takes 10 minutes to lay one row of laminate boards, we can calculate the total time required by multiplying the time per row by the number of rows.

To find the number of rows, we divide the length of the room by the width of each laminate board: 4 / 1.4 = 2.86 rows. Since we can't have a fraction of a row, we round up to 3 rows.

Therefore, the skilled craftsman would need to lay 3 rows of laminate boards.

To calculate the total time required, we multiply the time per row by the number of rows: 10 minutes/row * 3 rows = 30 minutes.

Therefore, it would take the skilled craftsman approximately 30 minutes to complete the job.

I hope this helps! Let me know if you have any further questions.