SOLUTION: The width of an 18-sq rectangle is 5cm shorter than twice the length please symbolize and solve the rectangles dimensions

Question 1055821: The width of an 18-sq rectangle is 5cm shorter than twice the length please symbolize and solve the rectangles dimensions
Answer by ikleyn(52780) (Show Source): You can put this solution on YOUR website!
.
The width of an 18-sq rectangle is 5 cm shorter than twice the length please symbolize and solve the rectangles dimensions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

W*L = 18.

W = 2L - 5.

====> (2L-5)*L = 18.

2L^2 - 5L - 18 = 0.


 =  = .


The only positive root is L = 4.5.

Answer. The dimensions of the rectangle are 4.5 cm and  2*4.5-5 = 4 cm.

RELATED QUESTIONS
The length of a rectangle is twice the width. The perimeter is 84 cm more than the width. (answered by josgarithmetic)

the length of a rectangle is three less than twice the width and its equal to 44 sq. cm... (answered by checkley79)

Please answer this question The length of a red rectangle is 15 cm more than its width (answered by Seutip)

Length of a rectangle is 6 inches less than twice the width if the area of the rectangle... (answered by ewatrrr)

the length of a rectangle is 2 more than twice its width. if the area of the rectangle is (answered by josgarithmetic)

The length of a rectangle is 2 more than twice its width. If the area of the rectangle is (answered by addingup,MathTherapy)

width of a rectangle is 5cm shorter than the length. Perimeter is is 290 cm, find the... (answered by rfer,drj)

the length of a rectangle is 7 meters shorter than twice the width. the perimeter is 64... (answered by ewatrrr)

find the perimeter of a rectangle whose length is 5cm less than twice its... (answered by mananth)