Question

А) Длина стола 2 4/5 м. Сколько это сантиметров? б)Песня звучала 4 2/3 мин. Сколько это секунд?

Answer 1

а) Длина стола 2 4/5 м. Это 2,8 м=2,8×100=280 сантиметров б)Песня звучала 4 2/3 мин.

Это 4 2/3×60=(4+2/3)×60= 4×60+2/3×60= 240+40=280   секунд

Answer 2

2 4/5 *100 = 200 + 400/5= 200+80=280 см
4 2/3 * 60= 240+ 120/3=240+40=280 сек

Answer 3

Answer:

a) Длина стола 2 4/5 метра равна 284 сантиметрам.

To convert meters to centimeters, we can use the fact that 1 meter is equal to 100 centimeters. Therefore, 2 4/5 meters can be calculated as:

2 4/5 meters = (2 + 4/5) meters = 2.8 meters

Now, to convert meters to centimeters, we multiply by 100:

2.8 meters * 100 = 280 centimeters

So, the length of the table is 280 centimeters.

b) Песня, звучавшая 4 2/3 минуты, равна 282 секундам.

To convert minutes to seconds, we can use the fact that 1 minute is equal to 60 seconds. Therefore, 4 2/3 minutes can be calculated as:

4 2/3 minutes = (4 + 2/3) minutes = 4.67 minutes

Now, to convert minutes to seconds, we multiply by 60:

4.67 minutes * 60 = 280.2 seconds

So, the song that played for 4 2/3 minutes is equal to 280.2 seconds, which we can round to 282 seconds.