SOLUTION: The lenght of the rectangular floor measures 8m longer than it's width. The area of the floor is 124m square. What is the width of the floor? How about the length?

Algebra.Com
Question 1168914: The lenght of the rectangular floor measures 8m longer than it's width. The area of the floor is 124m square. What is the width of the floor? How about the length?
Answer by ikleyn(52786)   (Show Source): You can put this solution on YOUR website!
.

From the condition,


    w*(w+8) = 124  square meters.


    w^2 + 8w - 124 = 0.


Apply the quadratic formula.

If you don't know the quadratic formula, learn about it from the lessons
    - Introduction into Quadratic Equations
    - PROOF of quadratic formula by completing the square
in this forum.



RELATED QUESTIONS

The lenght of the rectangular floor measured 8m longer than the width. The area of the... (answered by ikleyn)
the length of a rectangular floor is 8m, this length is two meters less than five times... (answered by stanbon)
The length of a rectangular floor is twice its width. If the area of the floor is 12.5... (answered by josgarithmetic)
A rectangular floor has an area of 24 square meters. The length of the floor is 2 meters... (answered by amarjeeth123)
A rectangular floor measures 3.5 meters by 4.5 meters. What is the are of the floor in... (answered by actuary)
what is the perimeter of a parallelogram in which the area is 124m^2 and the base is... (answered by richard1234)
The area of the floor of the rectangular room shown in the figure is 243 square feet. The (answered by sofiyac)
the diagram shows a rectangular dance floor with an area of 120 square meters and a width (answered by richard1234)
the length of a floor is 7 feet longer than the width. If x represents the width of the... (answered by nerdybill)