Question

15 мин 50 c + 40 c+ 3 мин 25 c =? 12 МИН 30 c – 4 мин 50 c+9 мин 45 c =? 50 мин – 19 мин 50 c+ 12 мин 35 c =? ​

Answer 1

Ответ:

1) 19мин 45с. 2)18мин 25с. 3)50мин 45с.

Пошаговое объяснение:

Answer 2

Let's calculate the given expressions step by step:

1. 15 minutes 50 seconds + 40 seconds + 3 minutes 25 seconds:

To add minutes and seconds, we need to consider that 1 minute has 60 seconds.

15 minutes + 3 minutes = 18 minutes 50 seconds + 40 seconds + 25 seconds = 115 seconds = 1 minute 55 seconds

So, the result is 18 minutes 1 minute 55 seconds, which can be simplified to 19 minutes 55 seconds.

2. 12 minutes 30 seconds - 4 minutes 50 seconds + 9 minutes 45 seconds:

12 minutes - 4 minutes + 9 minutes = 17 minutes 30 seconds - 50 seconds + 45 seconds = 25 seconds

So, the result is 17 minutes 25 seconds.

3. 50 minutes - 19 minutes 50 seconds + 12 minutes 35 seconds:

50 minutes - 19 minutes + 12 minutes = 43 minutes 0 seconds - 50 seconds + 35 seconds = -15 seconds

Since the result has negative seconds, we need to borrow 1 minute from the minutes part:

43 minutes - 1 minute = 42 minutes 60 seconds - 15 seconds = 45 seconds

So, the result is 42 minutes 45 seconds.

Final results:

1. 15 мин 50 c + 40 c + 3 мин 25 c = 19 мин 55 c
2. 12 МИН 30 c – 4 мин 50 c + 9 мин 45 c = 17 МИН 25 c
3. 50 мин – 19 мин 50 c + 12 мин 35 c = 42 мин 45 c