Question

Теплоход проехал 4 часа по реке, 3 часа по озере. Всего теплоход проехал 348 км. Скорость по реке 48км\ч. Скорость по озере? Уравнением решите и условие пожалуста и заренее спс

Answer 1

348=(4×48)+(3×Х)
348-192=(3×Х)
Х=156÷3
Х=51км по озеру

Answer 2

Problem Statement

A boat traveled for 4 hours on a river and 3 hours on a lake. The total distance traveled by the boat was 348 km, and the speed on the river was 48 km/h. We need to find the speed of the boat on the lake.

Solution

Let's assume the speed of the boat on the lake is x km/h.

To solve this problem, we can use the formula: distance = speed × time.

The boat traveled for 4 hours on the river, so the distance traveled on the river can be calculated as: distance_on_river = speed_on_river × time_on_river = 48 km/h × 4 hours = 192 km.

The boat also traveled for 3 hours on the lake, so the distance traveled on the lake can be calculated as: distance_on_lake = speed_on_lake × time_on_lake = x km/h × 3 hours = 3x km.

The total distance traveled by the boat is given as 348 km, so we can write the equation: distance_on_river + distance_on_lake = total_distance.

Substituting the values, we get: 192 km + 3x km = 348 km.

Simplifying the equation, we have: 3x km = 348 km - 192 km, 3x km = 156 km.

Finally, solving for x, we divide both sides of the equation by 3: x = 156 km / 3.

Therefore, the speed of the boat on the lake is 52 km/h.

Answer

The speed of the boat on the lake is 52 km/h.