Question

A notebook costs ₹ x and a pen costs ₹ y. A girl purchased 8 notebooks and 3 pens. She gave a hundred rupee note to the shopkeeper. Write an algebraic expression for the change she will get back.​

Answer 1

Answer:

Hope it helps

Step-by-step explanation:

8x+3y=100

what is the value of x and y

Answer 2

Given total cost of 5 pens and 10 pencil = Rs 30

5 pens + 10 pencils = 30

pens + 2 pencils = 1

also given pen cost 3 more than a pencil

i.e, pen = 3 + pencil.

pen - pencil = 3

pens + 2 pencils = 6

_______________

-3 pencils = -3

pencils = 1

pen - 1 = 3

pen = 4

cost of pencils = 1 cost of pen = 4

solution

Step-by-step explanation:

I hope it's help you ok