Question

А)задача из 15 м ткани сшили 10 платьев. Сколько платьев можно сшить из 3 м ткани? б) Аня прочитала за 6 мин 4 страницы книги. Сколько страниц она прочитает за час? в) Мешок картофеля весит 40 кг и стоит 320 р. Картофель расфасовали в пакеты по 2 кг и по 5 кг. Сколько стоит каждый пакет с картофелем Пожалуйста помогите срочно!!!!!

Answer 1

а)  1м=100см  15м=1500см 

1500:10=150см-1м50см ушло на одно платье

150*3=450см-4м50см уйдет на 3 платья

б)   в одном часе 60мин  значит 60:6=10 раз она прочитает по 4 страницы  и 10*4= 40 страниц прочитает за 1час

в) 320:40=8 руб стоит 1 кг картошки

2*8=16 руб стоит мешок по 2 кг

5*8=40 руб  стоит мешок по5 кг

Answer 2

Task A: Sewing Dresses

To find out how many dresses can be made from 3 meters of fabric when 10 dresses are made from 15 meters of fabric, we can use a proportion to solve for the number of dresses.

Let's denote: - x as the number of dresses that can be made from 3 meters of fabric. - 15 as the total meters of fabric used to make 10 dresses. - 3 as the available meters of fabric.

The proportion can be set up as: 15 / 10 = 3 / x

Solving for x: x = (3 * 10) / 15

x = 2

So, 2 dresses can be made from 3 meters of fabric.

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Task B: Reading Speed

To find out how many pages Anna can read in an hour, given that she reads 4 pages in 6 minutes, we can use a proportion to solve for the number of pages.

Let's denote: - x as the number of pages Anna can read in an hour. - 4 as the number of pages read in 6 minutes. - 60 as the number of minutes in an hour.

The proportion can be set up as: 4 / 6 = x / 60

Solving for x: x = (4 * 60) / 6

x = 40

So, Anna can read 40 pages in an hour.

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Task C: Cost of Potato Bags

To find out the cost of each bag of potatoes, we can calculate the cost of a 2 kg bag and a 5 kg bag.

Given: - Total weight of potatoes = 40 kg - Total cost of potatoes = 320 RUB - Cost of a 2 kg bag = ? - Cost of a 5 kg bag = ?

Let's calculate the cost of each bag: - Cost of a 2 kg bag: 320 RUB / (40 kg / 2 kg) = 320 RUB / 20 = 16 RUB - Cost of a 5 kg bag: 320 RUB / (40 kg / 5 kg) = 320 RUB / 8 = 40 RUB

So, each 2 kg bag costs 16 RUB and each 5 kg bag costs 40 RUB.

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