Question

If a plank has a perimeter of 18 feet and an area of 14 square feet what mostly describes the length and the width of the plank

Answer 1

length =7 breadth =2

Explanation:

l x b = 14, so l= 14/b

2(l+b) =18 , l+b =9

14/b+b=9

`b^ {2}` -9b+14=0

`b^ {2}` -7b-2b+14=0

(b-7)(b-2) =0

b= 7 or 2