Answer:
The parking lot is 25 feet long and 22 feet wide
Step-by-step explanation:
Let's say the rectangle is [tex]x[/tex] feet long. It means it has to be [tex]x+3[/tex] feet wide.
Knowing it's area we can write an equation for the unknown:
[tex]x(x+3) = 550\\x^2+3x-550 = 0\\x= \frac12(-3\pm\sqrt{2209})\\x_1=-25: x_2=22[/tex]
Since we're talking about measures of length, the negative answer is obviously not interesting, so we're left with [tex]x=22[/tex]
