Предмет: Математика, автор: adidas6

Расстояние между городом и зимовкой 150 км .Из города к зимовке выехали аэросани со средней скоростью 60 км/ч. В это же время навстречу им из зимовки по той же дороге вышел лыжник со средней скоростью 15 км/ч. На каком расстоянии от зимовки он встретил аэросани?

Ответы

Автор ответа: nkalutskikh

0

1)60 + 15=75 км/ч скорость сближения 2)150: 75= 2 часа - через 2 часа они встретятся 3)15 х 2= 30 км Ответ на расстоянии 30 км от зимовки

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Математика, автор: ma21ri09ja2008

360° Спростіть вираз і знайдіть його значення:
1) 6x (6x – 4) + 9x (3 – 4х), якщо x=-
9

6 лет назад

Предмет: Английский язык, автор: zekejfatiha

Now complete the text with the correct form of the verbs in the box. There may be more than one possible

answer so try to use each verb once only.

concentrate do learn overcome organise study take teach review revise

Even the most studious among you will probably have diffi culty studying at some stage in your academic career. If

or when this happens, the only way to (1)......................... this problem is to go back to basics. First, make sure you

have a comfortable environment to (2)......................... in. Some students need to have a quiet space to themselves

and can’t (3)......................... if there are too many distractions. Others need some sort of background noise, such as

music or the company of friends. Whatever your personal preference is, you need to (4)......................... this fi rst of

all. Next, make sure you have all of the equipment or tools that you need. For example, if you are (5).........................

a geography course and you have to (6)......................... about countries and their capital cities then you will need

to have your atlas to hand. If you’re (7)......................... your maths homework then be sure to fi nd your calculator,

ruler, protractor and compass before you start. Perhaps you’re not preparing a homework assignment or project,

but are trying to (8)......................... for an exam. If so, you need to know exactly what is on your curriculum. You

should also (9)......................... your notes and make sure that you have a clear understanding of what your lecturers

have (10)......................... you. Of course, people with a learning disorder such as dyslexia may need to work harder

than others at their studies as they often struggle to read even relatively simple texts.

6 лет назад

Предмет: Обществознание, автор: Аноним

Какой документ гарантирует личные (гражданские) права у нас в стране?

6 лет назад

Предмет: Химия, автор: tul

ЗАПИСАТЬ СТРУКТУРНУЮ ФОРМУЛУ 2,4ДИМЕТИЛПЕНТАН

9 лет назад

Предмет: Алгебра, автор: капта

решите систему уравнений

5х-2у=11

4х-у=4

9 лет назад