Question

От 2 пристаней расстояние между которыми 320 километров одновременно отправились навстречу друг другу две моторные лодки через 4 часа лодки в 3 скорость подводной лодки 33 километров час Найдите скорость другой лодке

Answer 1

1) 33 * 4 = 132(км) прошла одна МОТОРНАЯ лодка
2) 320 - 132 = 188((км) прошла другая МОТОРНАЯ лодка
3) 188 : 4 = 47(км/ч)
Ответ: 47км/ч - скорость другой моторной лодки.

Answer 2

Calculation of the Speed of the Second Boat

To find the speed of the second boat, we can use the formula:

Speed = Distance / Time

Given that the distance between the two piers is 320 kilometers and the boats started simultaneously, we need to determine the time it took for the boats to meet.

Since the boats started simultaneously and traveled for 4 hours before meeting, we can calculate the distance covered by the first boat in 4 hours using the formula:

Distance = Speed x Time

Let's denote the speed of the first boat as x kilometers per hour. The distance covered by the first boat in 4 hours is:

Distance of the First Boat = x km/h x 4 h = 4x km

Since the boats are traveling towards each other, the sum of the distances covered by both boats should be equal to the total distance between the piers:

Distance of the First Boat + Distance of the Second Boat = Total Distance

Substituting the values, we have:

4x km + Distance of the Second Boat = 320 km

Now, let's find the speed of the second boat.

Solution:

1. The distance covered by the first boat in 4 hours is 4x km. 2. The sum of the distances covered by both boats is 4x km + Distance of the Second Boat. 3. The sum of the distances covered by both boats is equal to the total distance between the piers, which is 320 km. 4. Setting up the equation: 4x km + Distance of the Second Boat = 320 km. 5. Rearranging the equation to solve for the distance of the second boat: Distance of the Second Boat = 320 km - 4x km. 6. The speed of the second boat can be calculated using the formula: Speed = Distance / Time. 7. The time taken by the second boat to cover the distance is 3 hours (as given in the question). 8. Substituting the values, we have: Speed of the Second Boat = (320 km - 4x km) / 3 h.

Therefore, the speed of the second boat is (320 km - 4x km) / 3 h.

Please note that we do not have enough information to calculate the exact speed of the second boat without knowing the speed of the first boat.