Question

The perimeter of the rectangle is 60 the length of the rectangle is more than double its breadth by 3cm find the length and bread
th use two variable

Answer 1

Answer:

2(l+b)=60

l=2x+3

b=x

2(2x+3+x)=60

(2x+3+x)=30

3x+3=30

3x=27

x=9

breadth is 9cm

Answer 2

Answer:

Length= 21 cm, Breadth= 9 cm

Step-by-step explanation:

2(l+b)= 60, or l+b= 30 {Eqn.1

l-2b= 3 {Eqn.2

Solving both equations,

(30-b)-2b= 3

30-3b= 3

3b= 27

b=9 cm

Thus, l= 21cm