Question

The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement.

(Take the cost of a notebook to be ₹ x and that of a pen to be ₹ y)​

Answer 1

Answer:

let the cost of notebook be x and that of pen be y

Step-by-step explanation:

given x=2y

thus it is the equation in 2 variable

x-2y=0

hope it helps

good luck for the day

mark brainliest

Answer 2

Given:

• Cost of notebook = Twice the cost of a pen
• Cost of a notebook = Rs. x
• Cost of a pen = Rs. y

To Find:

Write a linear equation in two variables to represent this statement (The cost of a notebook is twice the cost of a pen.)

Solution:

According to the question,

Let the cost of a notebook to be Rs. x

Let the cost of a pen to be Rs. y

According to the information,

The cost of a notebook is twice the cost of a pen.

i.e., Cost of a notebook = 2 Cost of a pen

$x=2 \times y\\\implies x=2y\\\implies \boxed{\underline{\underline{x-2y=0}}}$

Therefore,

∴ $x-2y=0$ is the linear equation in two variables to represent the statement ‘The cost of a notebook is twice the cost of a pen’.