Question

2т57кг-2ц6кг=? 55мин6сек-28мин34сек=? 8ч24мин+15ч49мин=?​

Answer 1

Ответ:

Пошаговое объяснение:

1) 18 ц 51 кг

2) 26 мин 32 с

3) 24 ч 13 мин

Answer 2

To solve the given equations, let's break down each expression and perform the calculations:

1. 2т57кг - 2ц6кг: To subtract these quantities, we need to borrow from the higher unit. Here "т" represents tons, "ц" represents centners, and "кг" represents kilograms.

2т57кг can be converted to 2 tons (т) and 57 kilograms (кг). 2ц6кг can be converted to 2 centners (ц) and 6 kilograms (кг).

To subtract the two values: 2т57кг - 2ц6кг = 2т57кг - 2т6кг - 57кг.

Since the units are the same, we can subtract the numbers directly: 2т57кг - 2т6кг = 51кг.

Therefore, 2т57кг - 2ц6кг is equal to 51кг.

2. 55мин6сек - 28мин34сек: To subtract these values, we need to consider both minutes (мин) and seconds (сек).

First, let's subtract the seconds: 6сек - 34сек = -28сек.

Since we have a negative value, we need to borrow from the minutes: 55мин - 28мин - 1мин = 26мин.

Therefore, 55мин6сек - 28мин34сек is equal to 26мин28сек.

3. 8ч24мин + 15ч49мин: To add these values, we need to consider both hours (ч) and minutes (мин).

8ч24мин + 15ч49мин = 23ч73мин.

Since we have more than 60 minutes, we can convert the excess minutes to hours: 23ч73мин = 23ч + 73мин / 60.

Dividing 73мин by 60: 73мин / 60 = 1ч13мин.

So, 23ч + 1ч13мин = 24ч13мин.

Therefore, 8ч24мин + 15ч49мин is equal to 24ч13мин.