1.

The cost of a pencil is Rs.2 and one ball point pen costs Rs.15. Sheela pays Rs.100 for the pencils and pens she purchased.Express the given statement as a linear equation in two variables.

Answer»

ANSWER:

The linear equation in TWO variable is 2x+15y=100

Step-by-step explanation:

GIVEN : The cost of a pencil is Rs.2 and one ball point pen costs Rs.15. Sheela pays Rs.100 for the pencils and pens she purchased.

To FIND : Express the given statement as a linear equation in two variables ?

Solution :

Let the number of pencil be 'X'.

The cost of a pencil is Rs.2.

The cost of x pencil is Rs.2x

Let the number of ball point pen be 'y'.

The cost of a ball point pen is Rs.15.

The cost of y ball point pen is Rs.15y

Total cost of  pencils and pens she purchased is Rs.100

So, The required equation form is 2x+15y=100

Therefore, The linear equation in two variable is 2x+15y=100



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