Question

In a class the no. of girls is x and the no. of boys is y. The no. of girls is 10 more than the no. of boys. Write the given data in the form of a linear equation in two variables. Also represent it graphically. Find graphically the no. of girls, if the no. of boys in 20.​

Answer 1

Answer:

(20, 30)

Step-by-step explanation:

x = y + 10 (y ≥ 0)

y = x - 10  (Domain of function is x ≥ 10, range of the function is y ≥ 0 )

If y = 20, then 20 = x - 10 ===> x = 30

(30, 20)