Question

(Help pls! Fast! )1-Williams Garden has a perimeter of 14 M the length is 5 m what is the width of his garden

(we want to find the the width since we are giving the perimeter we know with equals (perimeter - length - length)÷2)


2-if William wants to put a fence with two rails around his garden what length of rails should he buy (using the perimeter above we need to multiply perimeter X number of rails)
Thanks!

Answer 1

7m

Explanation:

let the width of the garden be a

length of the garden =a+5

Area=L×W

14=(a+5)×a

14=a×a +5a

0=a×a +5a-14

0=a×a+7a-2a-14

0=a(a+7)-2(a+7)

0=(a-2)(a+7)

Either A-2=0. a=2

or a +7=0. a=7

width cannot be negative. so width=2m

length =a+5

2+5

7m