Question

Собственая скорость лодки 6,5км/ч ,скорость течения реки 2 км/ч. 1)опредилите скорость лодки по течению реки и скорость лодки против течение реки. 2)найдите,на сколько километров в час скорость лодки по течению больше, чем скорость лодки против тичения. Помогите пожалуста

Answer 1

1) 6,5+2=8,5 (по течению)
   6,5-2=4,5 (против течения)
2) 8,5:4,5=$1\frac{8}{9}$

Answer 2

Calculating Boat Speed and Speed Against the Current

To calculate the boat's speed in still water and the speed against the current, we can use the following formulas:

1. Speed of the boat in still water (B) = (Speed of the boat downstream + Speed of the boat upstream) / 2 2. Speed of the current (C) = (Speed of the boat downstream - Speed of the boat upstream) / 2

Given: - Speed of the boat downstream = 6.5 km/h - Speed of the current = 2 km/h

Using the above formulas: 1. Speed of the boat in still water (B) = (6.5 + 2) / 2 = 4.25 km/h. 2. Speed of the current (C) = (6.5 - 2) / 2 = 2.25 km/h.

Therefore: 1. The speed of the boat against the current is 4.25 km/h - 2.25 km/h = 2 km/h. 2. The speed of the boat with the current is 4.25 km/h + 2.25 km/h = 6.5 km/h.

Speed Difference

To find the difference in speed between the boat with the current and the boat against the current, we can simply subtract the two speeds: 6.5 km/h - 2 km/h = 4.5 km/h.

So, the speed of the boat with the current is 4.5 km/h faster than the speed of the boat against the current.

I hope this helps! If you have any further questions, feel free to ask.