М
Молодежь
К
Компьютеры-и-электроника
Д
Дом-и-сад
С
Стиль-и-уход-за-собой
П
Праздники-и-традиции
Т
Транспорт
П
Путешествия
С
Семейная-жизнь
Ф
Философия-и-религия
Б
Без категории
М
Мир-работы
Х
Хобби-и-рукоделие
И
Искусство-и-развлечения
В
Взаимоотношения
З
Здоровье
К
Кулинария-и-гостеприимство
Ф
Финансы-и-бизнес
П
Питомцы-и-животные
О
Образование
О
Образование-и-коммуникации
lebrov
lebrov
12.02.2022 08:49 •  Математика

1.площадь поля 260 га. горохом засеяно 35 % поля. какую площадь занимают посевы гороха? 2.найдите значение выражения 201 – (176,4 : 16,8 + 9,68)  2,5. 3.в библиотеке 12 % всех книг – словари. сколько книг в библиотеке, если словарей в ней 900? 4.решите уравнение 12 + 8,3х + 1,5х = 95,3. 5.от мотка провода отрезали сначала 30 %, а затем еще 60 % остатка. после этого в мотке осталось 42 м провода. сколько метров провода было в мотке первоначально? решите контрольную

👇
Ответ:
milanali
milanali
12.02.2022
1) 260:100=2.6(га) -1%
2.6*35=91 (га)
ответ: Горохом засеяно 91 Га
2) Непонятно, что за знак в конце.
3)900:12=75 (Книг) -1%
75*100=7500 (Книг)
ответ: 7500 книг в библиотеке
4)12+8.3х+1.5х=95.3
9.8х=95.3-12
9.8х=83.3
х=8.5
5) 100-30-60=10% сотка осталось
42:10=4.2 (м) - 1%
4.2*100=420 метров
ответ: 420 метров в мотке.
4,6(23 оценок)
Открыть все ответы
Ответ:
astasevbogdanp08dn2
astasevbogdanp08dn2
12.02.2022

Пошаговое объяснение:

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

мSorry, I didn't understand anything

мSorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

Sorry, I didn't understand anything

4,7(20 оценок)
Ответ:
Howcould
Howcould
12.02.2022

Пошаговое объяснение:

9)

(30088-27028):30+29*31=1001

1)

_30088

27028

3060

2)

_3060 |__30

30 |102

_60

60

0

3)

29*31=20*31+9*31=620+279=899

4)

102+899=1001

10) магазины

1 магазин

1)4*190=760(руб) стоят 4 полотенца

2)760+950=1710 (руб) стоят полотенца и противень

3)5*90=450 (руб) стоят 5 стаканов

4)1710+450=2160 (руб) стоят 5 стаканов 4 полотенца и противень

5)2160+500=2660 (руб) вся покупка первого магазина

2магазин

1)220*4=880 (руб) стоят 4 полотенца

2)880+940=1820 (руб) стоят 4 полотенца и противень

3)5*80=400 (руб) стоят 5 стаканов

4)400+1820=2220(руб) стоят 4 полотенца, противень, 5 стаканов

5)2220+470=2690(руб) вся покупка второго магазина

ответ: 2660 рублей покупка первого магазина. Дешевле.

11) города

Согласно графику, город Пекин 4 по численности населения

4,4(8 оценок)
Это интересно:
Новые ответы от MOGZ: Математика
logo
Вход Регистрация
Что ты хочешь узнать?
Спроси Mozg
Открыть лучший ответ