Question

ПОМОГИТЕ ПЛИЗ 1 ЗАДАЧА ЗА 5 Ч ПЛИТОЧНИК УКЛАДЫВАЕТ 20 М2 КАФЕЛЬНОЙ ПЛИТКИ,КАЖДЫЙ ЧАС ПОРОВНУ. СКОЛЬКО ЧАСОВ ЕМУ ПОТРЕБУЕТСЯ,ЧТОБЫ УЛОЖИТЬ 45 М2 ПЛИТКИ,ЕСЛИ ЗА ЧАС ОН БУДЕТ УКЛАДЫВАТЬ НА 1 М2 ПЛИТКИ БОЛЬШЕ? 2 ЗАДАЧА НА 8 ОДИНАКОВЫХ ПЛАТЬЕВ ИЗРАСХОДОВАЛИ 24 М ТКАНИ. СКОЛЬКО БЛУЗОК МОЖНО СШИТЬ ИЗ 36 М ТАКОЙ ЖЕ ТКАНИ,ЕСЛИ НА 1 БЛУЗКУ ТКАНИ РАСХОДУЮТ НА 1 М МЕНЬШЕ,ЧЕМ НА 1 ПЛАТЬЕ?

Answer 1

20/5=4 (м2) за один час
4+1=5 (м2) за один час будет укладывать
45/5=9 (ч) потребуется

24/8=3 (м) на одно платье
3-1=2 (м) на одну блузку
36/2=18 (блузок) 

Answer 2

Problem 1: Tiling a Floor

The problem states that a tile layer can lay 20 square meters of tile per hour. We need to determine how many hours it will take for the tile layer to lay 45 square meters of tile if they lay 1 square meter of tile more per hour.

To solve this problem, we can set up a proportion. Let's call the number of hours it takes to lay 45 square meters of tile "x". The proportion can be set up as follows:

20 square meters / 1 hour = (20 + 1) square meters / x hours

To solve for x, we can cross-multiply and solve for x:

20x = (20 + 1) * 45

20x = 21 * 45

x = (21 * 45) / 20

x = 47.25 hours

Therefore, it will take the tile layer approximately 47.25 hours to lay 45 square meters of tile if they lay 1 square meter of tile more per hour.

Problem 2: Sewing Blouses

The problem states that 8 identical dresses required 24 meters of fabric. We need to determine how many blouses can be sewn from 36 meters of the same fabric if each blouse requires 1 meter less fabric than each dress.

To solve this problem, we can set up a proportion. Let's call the number of blouses that can be sewn "x". The proportion can be set up as follows:

8 dresses / 24 meters = x blouses / 36 meters

To solve for x, we can cross-multiply and solve for x:

8x = 24 * 36

8x = 864

x = 864 / 8

x = 108

Therefore, it is possible to sew approximately 108 blouses from 36 meters of fabric if each blouse requires 1 meter less fabric than each dress.

Please let me know if you need any further assistance!