Question

От пристани одновременно в противоположных направ-иях отчалили 2 лодки.Через 6 часов расстояние между ними было 378 км.Найти сорость 2 лодки если скорость 1 лодки 35 км/ч?

Answer 1

1)35*6=210(километров проплыла 1-я лодка)
2)378-210=168(километров проплыла 2-я лодка)
3)168:6=28(километров в час [скорость 2-й лодки])

Answer 2

Problem Analysis

We are given that two boats departed from a pier simultaneously in opposite directions. After 6 hours, the distance between them was 378 km. We need to find the speed of the second boat, given that the speed of the first boat is 35 km/h.

Solution

Let's assume the speed of the second boat is v km/h.

After 6 hours, the first boat would have traveled a distance of 35 km/h * 6 hours = 210 km.

The distance between the two boats is 378 km, and the first boat has already traveled 210 km. Therefore, the second boat must have traveled the remaining distance: 378 km - 210 km = 168 km.

We can now set up the equation:

Distance traveled by the second boat = Speed of the second boat * Time

168 km = v km/h * 6 hours

To find the speed of the second boat, we can rearrange the equation:

v km/h = 168 km / 6 hours

Now we can calculate the speed of the second boat:

v km/h = 168 km / 6 hours = 28 km/h

Answer

The speed of the second boat is 28 km/h.