Question

СРОЧНННО!!! (с.53 №6,7) №6: От пристани А до пристани К- 30км.Расстояние между пристанями В и С-7км 650м,а между А и В вдвое больше. Чему равно расстояние между пристанями К и С? №7 Вычисли.

Answer 1

Пристани идут последовательно друг за другом А - В - С - К.
Переведем расстояние из километров в метры.
1 км = 1000м.
1) 7км 650м = (7 * 1000)м + 650м = 7650 (м) расстояние между пристанями В и С.
2) 7650 * 2 = 15300 (м) расстояние между пристанями А и В.
3) 7650 + 15300 = 22950 (м) расстояние между пристанями А и С.
4) 30км - 22950м = 30000 - 22950 = 7050 (м) расстояние между пристанями С и К.
5) 7050м = 7000м + 50м = 7км + 50м = 7км 50м (расстояние) между пристанями С и К.
Ответ: 7км 50м

Answer 2

Problem 6: Distance between Ports

In problem 6, we are given the following information: - The distance between port A and port K is 30 km. - The distance between ports B and C is 7 km 650 m. - The distance between ports A and B is twice the distance between ports B and C.

We need to find the distance between ports K and C.

To solve this problem, let's break it down step by step:

Step 1: Let's assign variables to the distances between the ports: - Distance between ports A and B: x km - Distance between ports B and C: 7 km 650 m - Distance between ports A and K: 30 km

Step 2: We know that the distance between ports A and B is twice the distance between ports B and C. So, we can write the equation: - x = 2 * (7 km 650 m)

Step 3: We need to convert the distance between ports B and C from km and m to a single unit. Let's convert it to meters: - 7 km 650 m = 7,650 m

Step 4: Now, we can substitute the value of x in terms of the distance between ports B and C: - 2 * (7,650 m) = 15,300 m

Step 5: We can now find the distance between ports K and C by subtracting the distance between ports A and B from the distance between ports A and K: - Distance between ports K and C = Distance between ports A and K - Distance between ports A and B - Distance between ports K and C = 30 km - 15,300 m

To perform the subtraction, we need to convert the distance between ports A and K to meters: - 30 km = 30,000 m

Now, let's calculate the distance between ports K and C:

Distance between ports K and C = 30,000 m - 15,300 m = 14,700 m

Therefore, the distance between ports K and C is 14,700 meters.

Problem 7: Calculation

In problem 7, we are asked to perform a calculation. However, the specific calculation is not provided in the question. Could you please provide the details of the calculation you would like me to perform?