Question

по течению реки катер проходит расстояние в 36 км на 3 часа быстрее, чем против течения. чему равна собственная скорость катера, если скорость течения равна 1 км,ч

Answer 1

Ответ:

Пусть скорость катера равна x тогда

36 / х+1 плюс 3 равно 36 / х-1

36х -36 -36х -36 +3х^2 -3 =0

3x^2=75

x^2=25

x=5

=x²

Answer 2

Calculating the Boat's Speed

To calculate the boat's speed, we can use the formula: Boat's speed = (Speed downstream + Speed upstream) / 2

Given: - Distance downstream = 36 km - Time downstream = 3 hours - Speed of the current = 1 km/h

We can use the formula to find the boat's speed.

Calculation

Using the given information, we can calculate the boat's speed as follows:

Speed downstream = (36 km) / (3 hours) = 12 km/h Speed upstream = Speed downstream - Speed of the current = 12 km/h - 1 km/h = 11 km/h

Now, we can calculate the boat's speed: Boat's speed = (12 km/h + 11 km/h) / 2 = 23 km/h / 2 = 11.5 km/h

So, the boat's speed is 11.5 km/h.

This calculation is based on the provided information and the formula for calculating the boat's speed in still water.