Answer:
The length of the rectangular park is [tex]1.2\ mi[/tex] and the width of the rectangular park is [tex]0.3\ mi[/tex]
Step-by-step explanation:
Let
x ----> the length of the rectangular park
y ---> the width of the rectangular park
we know that
The perimeter is equal to
[tex]P=2(x+y)[/tex]
[tex]P=3\ mi[/tex]
so
[tex]3=2(x+y)[/tex] -----> equation A
[tex]x=4y[/tex] ----> equation B
substitute equation B in equation A and solve for y
[tex]3=2(4y+y)[/tex]
[tex]3=10y[/tex]
[tex]y=0.3\ mi[/tex]
Find the value of x
[tex]x=4(0.3)=1.2\ mi[/tex]
therefore
The length of the rectangular park is [tex]1.2\ mi[/tex] and the width of the rectangular park is [tex]0.3\ mi[/tex]