Answer:
40 feet
Step-by-step explanation:
We know that the area of a rectangle is represented as , where l is the length and w is the width.
We already know the width, and we know the area, so we can plug these values into the equation.
Our goal is to now isolate the variable l, and to do this we can divide both sides by 6.
Hope this helped!
l=a/w
Length equals area divided by width.
x = 3
Subtract 8x from both sides.
3x+4−8x=8x−11−8x
−5x+4=−11
Subtract 4 from both sides.
−5x+4−4=−11−4
−5x=−15
Divide both sides by -5.
−5x
−5
=
−15
x=3
y = 2x + 5 is an option
the cost of increase is $5.00