Question

Помогите срочно Пожалуйста!!!!! Катер плыл 1,6 ч против течения реки и 2,4 ч по течению. На сколько больше проплыл катер, двигаясь по течению реки, чем против течения, если скорость течения равна 2,1 км/ч , а собственная скорость катера-28,2 км/ч ?

Answer 1

28,2-2,1=26,1 км/ч скорость против течения
28,2+2,1=30,3 ки/ скорость по течению
26,1*1,6=41,76 км проплыл против течения
30,3*2,4=72,72 к по течению
72,72-41,76=30,96 км проплыл больше по течению

Answer 2

Problem Analysis

To solve this problem, we need to calculate the distance the boat traveled both against and with the current, and then find the difference between the two distances.

Solution

First, let's calculate the distance traveled against the current and with the current.

The boat's speed against the current is the difference between its own speed and the speed of the current: Speed against the current = Boat's speed - Current's speed

The boat's speed with the current is the sum of its own speed and the speed of the current: Speed with the current = Boat's speed + Current's speed

Now, we can calculate the distances traveled: Distance = Speed × Time

Calculation

Let's calculate the distances traveled against and with the current using the given values: - Boat's speed = 28.2 km/h - Current's speed = 2.1 km/h - Time against the current = 1.6 hours - Time with the current = 2.4 hours

Speed against the current = 28.2 km/h - 2.1 km/h = 26.1 km/h Speed with the current = 28.2 km/h + 2.1 km/h = 30.3 km/h

Now, we can calculate the distances: Distance against the current = 26.1 km/h × 1.6 h Distance with the current = 30.3 km/h × 2.4 h

Results

Let's calculate the distances: Distance against the current = 26.1 km/h × 1.6 h = 41.76 km Distance with the current = 30.3 km/h × 2.4 h = 72.72 km

Now, we can find the difference in distances: Difference = Distance with the current - Distance against the current

Difference = 72.72 km - 41.76 km = 30.96 km

Answer

The boat traveled 30.96 km more when moving with the current than against the current.