Предмет: Математика, автор: gvion13

Помогите пожалуйста решить задачу под номером 2 задачу под номером 3 задачу под номером 5 плиззз

Приложения:

gvion13: Пожалуйста пока есть еще решите задачу под номером 5

Ответы

Автор ответа: fanta2310
1
№ 2.
1 способ:
1) 25650 : 38 = 675 деталей в день
2) 675 * 19 = 12825 деталей за 19 дней
2 способ
1) 38 : 19 = 2 раза меньше изготовят
2) 25650 : 2 = 12825

№ 3.
1) 50 * 9 : 5 = 90 км/ч скорость дикого гуся
2) 90 * 7 : 5 = 126 км/ч скорость черного стрижа

№ 5.
1 способ:
1) 2200 : 5 = 440 конфет в минуту
2) 7 * 60 = 420 минут
3) 440 * 420 = 184800 конфет за 7 часов
2 способ:
1) 420 : 5 = 84 раза больше завернет конфет
2) 84 * 2200 = 184800 за 7 часов
Автор ответа: пимочка
1
№2.
1 способ:
1) 25650:38=675 изготавливают деталей в день
2) 675*19=12825 деталей изготовят за 19 дней
2 способ: 
38 дней 25650 деталей
19 дней х деталей
38/19 = 25650/х
х=19*25655/38=487350/38=12825 деталей
№3.
1) 50: 5/9 = 50 * 9/5 = 90 км/ч скорость полета дикого гуся
2) 90 : 5/7 = 90 * 7/5 = 126 км/ч скорость полета стрижа
№5.
1 способ:
7ч=7*60=420мин
1) 2200:5=440 конфет производится в минуту
2) 420*440=184800 конфет за смену
2 способ:
5 мин - 2200 конфет
420 мин - х конфет
5/420=2200/х
х=420*2200/5=924000/5=184800 конфет
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Bryansk is a regional city situated in the heart of central Russia on the Desna river. Its history began in the year 985. The city is more than once stood as a barrier on the way of foreign invaders and Tatar-Mongol raids. The emblem of Bryansk is decorated with a gun and cannon-balls. tThe anthem of the city is "Bryansk Forest Rustled Sternly". Bryansk is a city of " pattisan fame". During the Great Patriotic War Bryansk was the chief centre of the Partisan movement. Bryansk was liberated from German occupants on the 17^th of September 1943. in the post war years Bryansk was completely rebuilt and restored. The population of the city is about 500.000 people. Most of the peopal are the Russians.
Bryansk consists of four districts: Sivetsky, Bezhizky, Fokinsky and Volodarsky. Bryansk is one of the greatest industrial centers of Russia. The main industrial enterprises are: Engineering Works, Bryansk Automobile Plant. Joint Store Companies ( Cremny) , (Arsenal) , and (lity).
Due to its geographical position (at the border line between Russia, Beloryssia, Ukraine) Brynsk is a convenient place for doing business. Bryansk is famous for its railway terminal (7 directions).
Bryansk is an educational centre. It has 70 secondary schools, four universitues, many colleges and professional schools.
Bryansk is rather attractive. The city has a lot of places to visit: the Drama theatre, the Puppet theatre, the Circus, the Concert Complex (Druzhba), the Hill of immortality, Partisan Square, Karl Marks Square, and Lenin Avenue. Alexei Tolstoy Park and the central park (Solovie) are the best places for recreation. Pokrovskaya Gora with its beautiful churches is the most interesting sight of Bryansk. There are many museums, hotels, libraries, monuments in the city.