Question

4 класс! ;;; на изготовление одного чехла требуется 2м 50см ткани, а на одно покрывало для него 90 см такойже ткани. Всего было израсходовано 24 м ткани. сшили 10 покрывал. сколько сшили чехлов для кресла? решите задачу и все вернется бумерангом​

Answer 1

Ответ:

6 чехлов

Пошаговое объяснение:

24м=2400см

90.10=900см

2400-900=1500см

1500:250=6 чехлов

Answer 2

To solve this problem, let's break it down step by step.

Given information: - To make one cover, you need 2 meters and 50 centimeters (or 250 centimeters) of fabric. - To make one blanket for the cover, you need 90 centimeters of the same fabric. - A total of 24 meters of fabric was used. - 10 blankets were made.

Let's find out how many covers were made for the chair.

Step 1: Calculate the total fabric used for the blankets

To find out how much fabric was used for the blankets, we multiply the fabric required for one blanket by the number of blankets made. - Fabric required for one blanket: 90 centimeters - Number of blankets made: 10 - Total fabric used for the blankets: 90 centimeters * 10 = 900 centimeters (or 9 meters)

Step 2: Calculate the remaining fabric used for the covers

To find out how much fabric was used for the covers, we subtract the fabric used for the blankets from the total fabric used. - Total fabric used: 24 meters - Fabric used for the blankets: 9 meters (as calculated in Step 1) - Remaining fabric used for the covers: 24 meters - 9 meters = 15 meters

Step 3: Calculate the number of covers made

To find out how many covers were made, we divide the remaining fabric used for the covers by the fabric required for one cover. - Remaining fabric used for the covers: 15 meters - Fabric required for one cover: 250 centimeters (or 2 meters and 50 centimeters) - Number of covers made: 15 meters / 2.5 meters = 6 covers

Therefore, 6 covers were made for the chair.

I hope this helps! Let me know if you have any further questions.