Question

Купили 5 м ткани в горошек и 7 м такой же ткани в полоску. Сколько стоит каждый кусок ткани если всего заплатили 360 рублей ?

Answer 1

1)5+7=12(м) ткани всего.
2)360:12=30(руб.) за 1 метр.
3)5*30=150(руб.) в горошек.
4)7*30=210(руб.) в полоску.

Answer 2

Calculating the Cost of Each Piece of Fabric

To calculate the cost of each piece of fabric, we can use the given information that 5 meters of fabric with polka dots and 7 meters of fabric with stripes were purchased for a total of 360 rubles.

Let's denote the cost of 1 meter of fabric with polka dots as x and the cost of 1 meter of fabric with stripes as y.

We can then set up the following system of equations based on the given information: 1. 5x + 7y = 360 (total cost equation) 2. x = ? (cost of 1 meter of fabric with polka dots) 3. y = ? (cost of 1 meter of fabric with stripes)

To solve for x and y, we can use the system of equations.

Solving the System of Equations

Using the system of equations, we can solve for the cost of each type of fabric.

First, let's solve for x: From the first equation, we can express x in terms of y: 5x = 360 - 7y x = (360 - 7y) / 5

Now, let's solve for y: Substitute the expression for x into the first equation: 5((360 - 7y) / 5) + 7y = 360 360 - 7y + 7y = 360 360 = 360

This equation does not provide a unique solution for y. It seems there might be a mistake in the given information or the equations provided.

If you have additional information or if there's a specific aspect you'd like to focus on, please feel free to provide more details, and I'd be happy to assist further.