Question

Sangeetha went to a book-Seller shop
and purchases 2 test book of
9th Mathematics and 3 text book
for class X maths for RS 250.
and her friend Meenu also bought 4 text
books of 9th Maths and & 6 text
books of X Maths of some kind
for rs 500. Represent this situation algebraically and
graphically......​

Answer 1

Let the class 9 books be represented by x and class 10 books by y.

Now for Sangeeta's case ,

2x + 3y = 250.

So , 2x + 3y - 250 = 0 is equation 1.

And for Meenu ,

4x + 6y = 500.

So , 4x + 6y -500 =  0 is equation 2.

Equation 1 and 2 are the algebraic representations

Put some value for x ,you get value of y.

Mark the points on graph you will get parallel lines , that is the graphical representation.

Answer 2

Answer:

Ask your doubt of linear equations and get answer from subject experts and ... CBSE X Mathematics Pair of Linear Equations in 2 Variables ... Asked by 1083508491789970 4th March 2018 10:32 AM.