Question

Два велосипедиста выехали одновременно из двух пунктов навстречу друг другу и встретились через 18 мин. За сколько минут 2 велосипедист проедет расстояние между этими пунктами, если первый велосипедист проезжает это расстояние за 30 мин.? Помогите! Без иксов. Заранее спасибо!Очень срочно!!!

Answer 1

$\frac{1}{18} - \frac{1}{30} = \frac{5-3}{90} = \frac{2}{90} = \frac{1}{45}$часть всего расстояния проезжает второй велосипедист за одну минуту
$1: \frac{1}{45} =45$мин -время за которое второй велосипедист проедет расстояние между пунктами

Answer 2

Problem Analysis

We have two cyclists who start simultaneously from two different points and meet after 18 minutes. The first cyclist covers the distance between the points in 30 minutes. We need to find out how long it will take the second cyclist to cover the same distance.

Solution

Let's assume the distance between the two points is D.

We know that the first cyclist covers the distance in 30 minutes, so their speed is D/30.

Since the two cyclists meet after 18 minutes, the second cyclist has been cycling for 18 minutes less than the first cyclist. Therefore, the time taken by the second cyclist to cover the distance is 30 - 18 = 12 minutes.

Answer

The second cyclist will take 12 minutes to cover the distance between the two points.

Explanation

The first cyclist covers the distance in 30 minutes, which means their speed is D/30. Since the two cyclists meet after 18 minutes, the second cyclist has been cycling for 18 minutes less than the first cyclist. Therefore, the time taken by the second cyclist to cover the distance is 30 - 18 = 12 minutes.

I hope this helps! Let me know if you have any further questions.