Предмет: Математика, автор: vika343

На одной стоянке было в 3 раза меньше автомашин,чем на второй.После того как на первую стоянку приехали 18 автомашин,а со второй уехали 10,автомашин на обеих стоянках стало поровну.Сколько автомашин было на каждой стоянке первоначально?

Ответы

Автор ответа: triolana

было на первой стоянке х

было на второй стоянке 3х

стало на первой х+18

стало на второй 3х-10

составим уравнение

3х-10=х+18

3х-х=18+10

2х=28

х=28:2

х=14 было на первой

14*3=42 было на второй

====================================

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Английский язык, автор: RussiaYuliya

Напишите рассказ на английском о своей фобии 10-15 предложений (ПАУКИ)

2 года назад

Предмет: Қазақ тiлi, автор: Nyashkanya1111

Казахский кроссворд на тему "вокзал"
1.Жолаушы отыратын орын (5 букв)
2."Проводник" сөзінін аудармасы (8 букв)
3.Билет сататын орын (5 букв)
4."Поезд" сөзінін аудармасы (5 букв)
5."Пассажир" сөзінін аудармасы (7 букв)
6."Дорога" сөзінін аудармасы

2 года назад

Предмет: Английский язык, автор: artemko2016

10 вопросов к тексту:
The terrible truth
We all enjoy a day out at the beach, but these days you are likely to find much more there than just sand and sea! Many of the thousands of people that visit beaches every year leave behind food wrappers, cigarette ends, drink cans and toys like buckets, spades and beach balls. These can then be blown or washed into the sea and become marine litter. Marine litter can also come from ships, fishermen, drains and factories.This litter doesn't just look horrible - it's dangerous, too!

Litter harms Wildlife and People
Marine mammals such as seals, sea lions and dolphins are very curious animals who like to examine unusual objects in the sea.This is how they get mixed up in the litter, which causes them injury and stops them from finding food or swimming away from their enemies. Birds, fish and mammals can also confuse litter for food and eat it. Sea turtles, for example, often eat plastic bags because they look like jellyfish, one of their favourite foods. This then fills up the turtle's digestive system and makes it feel full, so it stops eating and starves. 100,000 marine mammals and nearly a million seabirds die either from getting caught in or eating litter each year! Many of these creatures are already threatened or endangered species. In addition, litter is dangerous for people as they can cut themselves on glass or metal. Marine litter can also block boat propellers, which is dangerous and very expensive to repair.
So ... next time you go to the beach, make sure you are part of the solution, NOT the problem! Take ALL of your litter home with you and consider taking any other litter you can see around you too. If you live near a beach, you could even organise a Beach
Clean-up Day.

2 года назад

Предмет: Українська мова, автор: sergiyyk99

Прикметники до слова дорога

8 лет назад

Предмет: Русский язык, автор: ChioRio0

ДАЮ 35 БАЛЛОВ. ПОМОГИТЕ СРОЧНО. Напишите сочинение-описание на тему время года зима . 250 слов.

8 лет назад