Question

Их двух поселков находишихся на расстоянии 20км,вышли одновременнона встречу друг другу два лыжника .Они встретились через 40 минут.один из нах ехал со средней скоростью 240метров в минуту Обьясни выражения 1) 20 000:40= 3)240 Х 40= 2)20 000:40 - 240 4)20 000 - 240Х40= РЕБЯТА ТОЛЬКО ОБЬЯСНЕНИЯ И ВСЕ! ОТВЕТЫ ПИСАТЬ НЕ НАДО!!

Answer 1

1) 20 000:40=500м/мин скорость сближения

3)240 Х 40=9600 м проехал один лыжник

2)20 000:40 - 240 =260м/мин скорость второго лыжника

4)20 000 - 240Х40==10400  м проехал второй лыжник

 

у тебя почему то 3 идет перед №2       и я так написала   как у тебя

Answer 2

Problem Analysis

Two skiers from two different settlements, located 20 km apart, set off simultaneously to meet each other. They meet after 40 minutes. One of the skiers is traveling at an average speed of 240 meters per minute. We need to explain the expressions given in the question.

Explanation of Expressions

1) 20,000:40 - This expression represents the distance between the two settlements divided by the time it took for them to meet. In this case, the distance between the settlements is 20 km, and they met after 40 minutes. So, the expression evaluates to the average speed at which they were approaching each other.

2) 240 * 40 - This expression represents the speed of one of the skiers multiplied by the time it took for them to meet. In this case, one of the skiers was traveling at a speed of 240 meters per minute, and they met after 40 minutes. So, the expression evaluates to the distance covered by the skier.

3) 20,000:40 - 240 - This expression represents the distance between the two settlements divided by the time it took for them to meet, minus the speed of one of the skiers. In this case, the distance between the settlements is 20 km, they met after 40 minutes, and one of the skiers was traveling at a speed of 240 meters per minute. So, the expression evaluates to the average speed at which the other skier was approaching.

4) 20,000 - 240 * 40 - This expression represents the distance between the two settlements minus the distance covered by one of the skiers. In this case, the distance between the settlements is 20 km, and one of the skiers covered a distance of 240 meters per minute for 40 minutes. So, the expression evaluates to the remaining distance between the two skiers when they met.

Answer

The expressions given in the question can be explained as follows:

1) 20,000:40 - This expression represents the average speed at which the skiers were approaching each other. The distance between the two settlements is 20 km, and they met after 40 minutes.

2) 240 * 40 - This expression represents the distance covered by one of the skiers. One of the skiers was traveling at a speed of 240 meters per minute, and they met after 40 minutes.

3) 20,000:40 - 240 - This expression represents the average speed at which the other skier was approaching. The distance between the two settlements is 20 km, they met after 40 minutes, and one of the skiers was traveling at a speed of 240 meters per minute.

4) 20,000 - 240 * 40 - This expression represents the remaining distance between the two skiers when they met. The distance between the two settlements is 20 km, and one of the skiers covered a distance of 240 meters per minute for 40 minutes.

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