Question

Two numbers are in the ratio 4:5. If 30 is subtracted from each numbers, the ratio becomes 1:2. Form the pair of linear equations for the above situation and represent them graphically.

Answer 1

Step-by-step explanation:

x/y=4/5

5x=4y. (1)

x-30/y-30=1/2

2x-60=y-30

2x-y=30.

2x-30=y. (2)

putting the value of from eq.(2) in eq(1) you will get:

5x=8x-120

3x=120

x=40

from,eq (1)

y=50