Question

Два парохода одновременно отплыли от берега.через 4ч первый пароход был на расстоянии 120 км от берега,а второй на расстоянии 140км от берега.найди скорость каждого парохода.

Answer 1

120/4=30 км в час скорость первого
140/4=35 км в час скорость второго

Answer 2

120/4 =30 км( первый пороход)
140/4 =35км ( второй пороход)
Ответ: 30 км, 35 км.

Answer 3

Problem Analysis

We are given that two steamships simultaneously departed from the shore. After 4 hours, the first steamship was 120 km away from the shore, while the second steamship was 140 km away from the shore. We need to find the speed of each steamship.

Solution

Let's assume the speed of the first steamship is v1 and the speed of the second steamship is v2.

We can use the formula distance = speed × time to solve this problem.

After 4 hours, the first steamship traveled a distance of 120 km, so we have the equation: 120 = v1 × 4. (Equation 1)

Similarly, the second steamship traveled a distance of 140 km in 4 hours, so we have the equation: 140 = v2 × 4. (Equation 2)

To find the speed of each steamship, we can solve these two equations simultaneously.

Calculation

Let's solve Equation 1 for v1: v1 = 120 / 4 = 30 km/h.

Now, let's solve Equation 2 for v2: v2 = 140 / 4 = 35 km/h.

Answer

The speed of the first steamship is 30 km/h, and the speed of the second steamship is 35 km/h.

Note: The search results did not provide any relevant information for this specific problem. The solution was derived using basic mathematical principles.