Предмет: Математика, автор: nadezhda013

Задача 5 класс. Один рабочий работал 3 дня, по 7 часов в день, а другой 2 дня, по 8 часов в день. Вместе они изготовили 481 деталь. Сколько деталей изготовил каждый рабочий, если за час они изготовляли деталей поровну?

Ответы

Автор ответа: ира1807

1)7×3=21час работал первый рабочий
2) 8×2=16 час работал второй рабочий
3)21+16=37 часов работали 2 рабочих
4)481÷37=13 дет за 1 час изготавлиал 1 рабочий
5) 13×21=273 детали изготовил рабочий за 3 дня работая по 7 часов
6)13×16=208 дет изготовил рабочий за 2 дня работая по 8 часов

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: География, автор: gsjdvfjfgdkdhdidhrhf

3.2. Какая форма рельефа обозначена на карте цифрой 2? Запишите в ответе её название.
Ответ________
На какой из фотографий представлена указанная Вами форма рельефа?
A
Б
В
Ответ_______

6 лет назад

Предмет: Английский язык, автор: bombom72

use the tenses
Molly (speak) French , but right now she (speak) English
She

6 лет назад

Предмет: Английский язык, автор: evasaenko32

1. Read the text and mark the following statements «True» (T) or «False» (F).

«The Spiderwick Chronicles» is a series of children’s books by Tony DiTerlizzi and Holly Black. They write about the adventures of the Grace children, twins Simon and Jared and their older sister Mallory, after they move into Spiderwick Estate and discover a world of faeries that they never knew existed. According to a letter from Holly Black it all started when she and Tony DiTerlizzi were at a bookstore signing autographs and were given a letter that the Grace children had left for them. The letter told them about a book that «tells people how to find faeries and how to protect themselves». The letter went on to say, «We just want people to know about this. The things that have happened to us could happen to anyone». A few days later, according to Black, she and DiTerlizzi met the Grace children, and the story the children told them became «The Spiderwick Chronicles».

1) «The Spiderwick Chronicles» is a set of books._________

2) The book was written by one author._______

3) There were two girls and a boy in the family._________

4) The children had adventures that began when they were leaving the Spiderwick house.______

5) The magic began after reading the letter.________

6) The story was told by the faeries.________

2. Read the text. Make the sentences below the text true.

The United Kingdom (England, Scotland, Wales, and Northern Ireland) is one of the world’s most popular tourist places. The UK offers the tourists a view into the past, as historical attractions and famous places surround you wherever you travel. Home of world-class museums, famous art collections, green countryside, beautiful landscapes, interesting architecture, quaint villages, and different cultures (English, Irish, Scottish, and Welsh), the United Kingdom is

a place that has a lot of fantastic sites to visit.

1) Tourists from all parts of the UK visit the country.

2) The UK offers the tourists a view into the future.

3) Theme park attractions surround you wherever you travel.

3. Read the text below. Match choices (A—G) to (1—6). There is one choice you do not need to use.

Christopher’s 1) _________led him to write a novel that he would enjoy reading. The project began as a hobby, he never intended it to be published. All the characters in «Eragon» 2)_______ except Angela, who is based on his sister.

3) _______when he wrote the first draft of «Eragon». It took him two years. Then he gave it to his parents to read. The family 4)_____ and spent a third year preparing the manuscript for publication. During this time Christopher 5) ______, as well as the dragon eye for the book cover. The manuscript was sent to press and the first books arrived in November 2001. The Paolini family spent the next year 6)________ , bookstores, and schools in 2002 and early 2003.

A) are from Christopher’s imagination

B) promoting the book at libraries

C) Christopher was fifteen

D) drew the map for «Eragon»

E) decided to self-publish the book

F) love for the magic of stories

G) his beloved sister

6 лет назад

Предмет: Литература, автор: Lopata05

Определите произведение М.Ю. Лермонтова по формулировке его художественной идеи.
1. Человек не в состоянии преодолеть противоречия бытия, постоянно стремится достичь недостижимое, предпочитая бунт. мятеж спокойному существованию, отвергая достигнутое как незавершенное. Этому стремлению нет предела. Постоянный поиск истины- непременное условие обретение гармонии.
2. Чувство патриотизма неотрывно от представлений о своём народе и его благоденствии.

9 лет назад

Предмет: Математика, автор: sabinka67

решите по действиям площадь прямоугольника равна двенадцать сорок девятых дробь см2
найти его стороны если известно что одна его сторона больше другой в 3 раза. заранее спасибо ))

9 лет назад