Question

cost of a pencil is 2 and one ball point pen costs 15. Sheela pays ? 100
for the pencils and pens she purchased.​

Answer 1

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

Answer 2

Answer:

Let the cost of pencils=2x

Let the cost of a ball point pen=15y

Cost of pencils and pens she purchased=100

> 2x+15y=100

>2x+15y-100=0

Hope it helps you....this is the answer