Question

please say me in the answer ​

Answer 1

Step-by-step explanation:

1) length of rectangle = 3x -9

3) solution of equation is :

perimeter of rectangle is 2(l+b)

2(x+ 3x -9) = 150.

2x + 6x -18 = 150

8x = 150+18

8x = 168

x = 168/8

x = 21

4) breadth (x) = 21

and length is 3x -9. ( x=21)

3(21)-9

63-9

54.

so ,dimensions of rectangle are 21 and 54.