Question

1. 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 R x and that of a pen to be y)​

Answer 1

Answer:

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Step-by-step explanation:

x = 2y

Answer 2

Let the cost of a notebook to be =Rx

=y

According to the question,

According to the question,The cost of a notebook is twice the cost of a pen.

According to the question,The cost of a notebook is twice the cost of a pen.i.e., Cost of a notebook = 2xCost of a pen

X

XX = 2xy

XX = 2xyX-2y = 0

X-2y= 0 is the linear equation in two variables to represent the statement "The cost of a notebook is

X-2y= 0 is the linear equation in two variables to represent the statement "The cost of a notebook istwice the cost of a pen'".