Question

solve the following using elemination method​

Answer 1

Answer:

Length = 60cm

width = 15cm

Step-by-step explanation:

Let length be 'x' and width be 'y'

x=4y

x-4y=0

perimeter=150cm

2(x+y)=150

2x+2y=150

x+y=75

Equations:

x-4y=0------1

x+y=75------2

subtracting 2 from 1

x-4y=0

-x-y=-75

=-5y=-75

y=-75/5

y=15

putting value of y in equation 1:

x-4y=0

x-4(15)=0

x-60=0

x=60

y=15

Hence,the length of the rectangle is 60cm and width is 15cm.