Question

70т-489ц 35кг= 3ч58мн+48ч15мн= 6ц8кг*703= 25м83см:7см

Answer 1

70т-489ц 35кг=21т65кг                   3ч58мин+48ч15мин=52ч13ми
70т=70000кг                                   3ч58мин=238мин
489ц35кг=48935кг                          48ч15мин=2895мин
70000-48935=21065                       238+2895=3133
21065кг=21т65кг                             3133мин=52ч13мин

Answer 2

Let's break down the calculations one by one:

1. 70т - 489ц: To subtract 489 centners from 70 tons, we need to convert both quantities to the same unit. Since 1 ton is equal to 100 centners, we can convert 70 tons to centners by multiplying it by 100: 70 tons = 70 * 100 = 7000 centners

Now we can subtract: 7000 centners - 489 centners = 6511 centners

So, 70т - 489ц = 6511 ц.

2. 35кг = 3ч58мн + 48ч15мн: To add the given times, we first need to convert them to minutes.

3 hours 58 minutes = (3 * 60) + 58 = 180 + 58 = 238 minutes 48 hours 15 minutes = (48 * 60) + 15 = 2880 + 15 = 2895 minutes

Now we can add: 238 minutes + 2895 minutes = 3133 minutes

So, 35kg = 3133mn.

3. 6ц8кг * 703: To multiply 6 centners 8 kilograms by 703, we first need to convert it to a single unit, either centners or kilograms. Let's convert it to kilograms: 6 centners = 6 * 100 = 600 kilograms

Now we can multiply: 600 kilograms * 703 = 421,800 kilograms

So, 6ц8кг * 703 = 421,800 кг.

4. 25м83см : 7см: To divide 25 meters 83 centimeters by 7 centimeters, we need to convert both quantities to the same unit. Let's convert them to centimeters: 25 meters = 25 * 100 = 2500 centimeters

Now we can divide: (2500 centimeters + 83 centimeters) / 7 centimeters = 2583 centimeters / 7 centimeters = 369

So, 25м83см : 7см = 369.