A landscaper is designing a rectangular garden. The length of the garden is to be 5 feet longer than the width. If the area of the garden will be 104 square feet, what will be the length, in feet, of the garden?
width = y
length = y+5
area = 104 = y x (y+5) = y^2 + 5y
y^2 + 5y -104 = 0
(y-8)(y+13)= 0
y= 8 because can't have negative lengths
length = 8 + 5 = 13
Answer:
13 feet
Step-by-step explanation:
Let x be the width of the rectangular garden.
We are given that the length of the garden is to be 5 feet longer than the width.
So, Length = x+5
Area of rectangle = \(Length \times Width\)
= \(x \times (x+5)\)
We are given that the area of the garden will be 104 square feet
So, \(x \times (x+5)=104\)
\(x^2+5x -104=0\)
\((x-8)(x+13)=0\)
\(x=8,-13\)
Since the width cannot be negative.
So, neglect -13
So, width = x = 8
Length = x+5 = 8+5 = 13
So, the length of the garden is 13 feet.