Question

A teacher of class X buys 25 gel pens and 20 notebooks for `1255. Later, she buys 38 notebooks and 30 gel pens of same kind for another section for `2122. Represent this situation algebraically.

Answer 1

Answer:

let the cost of notebook be x

let the cost of pen be y

so first equation will be-

20x+25y=1255

second equation will be-

38x+30y=2122

now u are having 2 eqs so u can solve them by substituting them or eliminating them..

hope u got yr ans ..

harshita here ❤️❤️

Answer 2

let's

The notebook be x

the gel pen be y

according to 1st condition :

25x+20y=1255. .........(I)

according to 2nd condition :

38x+30y=2122. ..........(II)

so you do the next step

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