Question

из 96м ткани сшили 18 платьев и костюмы. на каждое платье израсходовали 3м, а на каждый костюм -6м. сколько сшили костюмов?решить иксом

Answer 1

3*18+6х=96

54+6х=96

6х=96-54

6х=42

х=42:6

х=7

ответ:сшили 7 костюмов 

Answer 2

Пусть у шт - костюмов

Составим уравнение

3*18+6у=96

54+6у=96

6у=96-54

6у=42

у=42:6

у=7 - шт костюмов

Answer 3

Problem Analysis

We are given that 18 dresses and costumes were made from 96 meters of fabric. Each dress requires 3 meters of fabric, while each costume requires 6 meters. We need to determine the number of costumes that were made.

Solution

Let's assume the number of costumes made is represented by the variable 'x'.

The total fabric used for dresses can be calculated by multiplying the number of dresses (18) by the fabric required for each dress (3 meters):

Total fabric used for dresses = 18 * 3 = 54 meters

The total fabric used for costumes can be calculated by multiplying the number of costumes (x) by the fabric required for each costume (6 meters):

Total fabric used for costumes = x * 6 = 6x meters

Since the total fabric used for both dresses and costumes is 96 meters, we can set up the following equation:

Total fabric used for dresses + Total fabric used for costumes = Total fabric available 54 + 6x = 96

To solve for 'x', we can rearrange the equation:

6x = 96 - 54 6x = 42

Dividing both sides of the equation by 6, we find:

x = 42 / 6 x = 7

Therefore, 7 costumes were made.

Answer

The number of costumes that were made is 7.