Question

от двух пристаней одновременно навстречу друг другу отплыли два катера. через 3 ч они встретились. С какой скоростью шёл каждый катер, если скорость одного-48 миль/ч, а расстояние между пристанями - 198 миль? Помогите пожалуйста:(

Answer 1

Ответ:

Пошаговое объяснение:

48 * 3 =144 мили проплыл первый до встречи

198 - 144 =54 мили проплыл второй до встречи

54 / 3 = 18 миль \ч - скорость второго катера.

Answer 2

Problem Analysis

We have two boats that start simultaneously from two different piers and sail towards each other. After 3 hours, they meet. We need to find the speed of each boat given that one boat has a speed of 48 miles per hour and the distance between the piers is 198 miles.

Solution

Let's assume the speed of the first boat is x miles per hour. Since the boats are sailing towards each other, the relative speed of the two boats is the sum of their individual speeds. Therefore, the relative speed of the two boats is x + 48 miles per hour.

We know that the boats meet after 3 hours, and the distance between the piers is 198 miles. We can use the formula distance = speed × time to find the distance traveled by each boat.

For the first boat, the distance traveled is x × 3 miles. For the second boat, the distance traveled is 48 × 3 miles.

Since the total distance traveled by both boats is equal to the distance between the piers, we can set up the following equation:

x × 3 + 48 × 3 = 198

Now we can solve this equation to find the value of x.

Calculation

Let's solve the equation:

x × 3 + 48 × 3 = 198

Simplifying the equation:

3x + 144 = 198

Subtracting 144 from both sides:

3x = 54

Dividing both sides by 3:

x = 18

Answer

The first boat was sailing at a speed of 18 miles per hour, and the second boat was sailing at a speed of 48 miles per hour.

Please let me know if I can help you with anything else.