Question

От пристани одновременно в противоположных направлениях отправились яхта и теплоход.Через 5 часов расстояние между ними стало равно 600 км.С какой скоростью шла яхта,если скорость теплохода 80 км/ч Пожалуйста решите задачу выражением!!!!!

Answer 1

(80+40)•5=600(км)
Вот выражением!

Answer 2

Problem Analysis

We are given that a yacht and a steamboat set off from a pier in opposite directions. After 5 hours, the distance between them is 600 km. The speed of the steamboat is given as 80 km/h. We need to find the speed of the yacht.

Let's assume the speed of the yacht is y km/h.

Solution

To solve this problem, we can use the formula: distance = speed × time.

After 5 hours, the distance traveled by the yacht can be calculated as 5y km, and the distance traveled by the steamboat can be calculated as 80 × 5 = 400 km.

Since the total distance between them is 600 km, we can set up the equation:

5y + 400 = 600

Simplifying the equation, we have:

5y = 200

Dividing both sides of the equation by 5, we get:

y = 40

Therefore, the speed of the yacht is 40 km/h.

Answer

The yacht was traveling at a speed of 40 km/h.

Explanation

The distance traveled by the yacht after 5 hours is 200 km (5 × 40 = 200 km), and the distance traveled by the steamboat after 5 hours is 400 km (80 × 5 = 400 km). The sum of these distances is 600 km, which matches the given information. Therefore, the solution is correct.