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

2 thoughts on “The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement​”

1. • Let the cost of a notebook to be = ₹ x
   • Let the cost of a pen to be = ₹ y

   According to the question,

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

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

   [tex] \: \: \: \: \: \: : \sf \ \implies x = 2×y [/tex]

   [tex] \: \: \: \: \: \: \sf : \implies{x = 2y}[/tex]

   [tex] \: \: \: \: \: \: \ : \implies \boxed {\frak{x – 2y = 0} } \orange\bigstar[/tex]

   Hence,

   • 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’.

   тнαηк үσυ

   @itzshivani

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2. Answer:

   let cost of notes be y

   let cost a pen be x

   cost of note= 2x=y

   x=y/2

   2(y/2)=y

   2y/4=y

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