Question

1.3ч45мин:7мин 30с 2.16т9ц:50кг 3.5дм2 25см2:25см2 4.48м 24см:3дм6см 5.2км 325:75 6.34км 290м:90м

Answer 1

Можно уточнить задание?

Answer 2

It seems like you have a list of expressions that involve different units of measurement. Let's break down each expression and simplify it where possible:

1. 1.3ч45мин + 7мин 30с: Let's add the hours and minutes first. 1 hour is equal to 60 minutes, so 1.3 hours = 1 hour 18 minutes. Now, adding the minutes, we get 1 hour 18 minutes + 7 minutes = 1 hour 25 minutes. Finally, adding the seconds, 1 hour 25 minutes + 30 seconds = 1 hour 25 minutes 30 seconds.

2. 2.16т9ц:50кг: This expression seems to involve unknown units. I'm not sure what "т9ц" represents, so I can't simplify this expression without knowing the unit of measurement.

3. 3.5дм2 25см2:25см2: This expression involves areas. We have a square with dimensions 3.5 dm by 2.5 dm, and we need to subtract a smaller square with dimensions 2.5 cm by 2.5 cm from it.

First, we convert 3.5 dm and 2.5 dm to centimeters: 3.5 dm = 3.5 * 10 cm = 35 cm 2.5 dm = 2.5 * 10 cm = 25 cm

Now, we can calculate the area of the larger square: Area = length * width = 35 cm * 25 cm = 875 cm^2

Next, we calculate the area of the smaller square: Area = length * width = 2.5 cm * 2.5 cm = 6.25 cm^2

Finally, we subtract the area of the smaller square from the area of the larger square: Result = 875 cm^2 - 6.25 cm^2 = 868.75 cm^2

4. 48м 24см:3дм6см: This expression involves length and subtraction. We have 48 meters and 24 centimeters, and we need to subtract 3 decimeters and 6 centimeters.

First, we convert 48 meters to centimeters: 48 m = 48 * 100 cm = 4800 cm

Now, we convert 3 decimeters to centimeters: 3 dm = 3 * 10 cm = 30 cm

Next, we can calculate the result: Result = 4800 cm - 30 cm = 4770 cm

5. 5.2км 325:75: This expression seems to involve division, but it's not entirely clear. I'm not sure what the colon (:) represents here, so I can't simplify this expression without more information.

6. 6.34км 290м:90м: This expression involves subtraction. We have 6.34 kilometers and 290 meters, and we need to subtract 90 meters.

First, we convert 6.34 kilometers to meters: 6.34 km = 6.34 * 1000 m = 6340 m

Next, we calculate the result: Result = 6340 m - 290 m = 6050 m

If you provide more context or clarify the expressions involving unknown units, I'll be happy to assist further!