SOLUTION: The length of a rectangle is two feet less than three times width of The length of a rectangle is two feet less than three times width of the rectangle . The area of the reactangl

Question 885556: The length of a rectangle is two feet less than three times width of
The length of a rectangle is two feet less than three times width of the rectangle . The area of the reactangle is 65ft. ?
a.) How would you represent the dimensionof the rectangle ?
b.) What equation represent the area of rectangle ?
c.) how will you find the dimension of the rectangle ?
d.)What are dimension of the rectangle?
Answer by josgarithmetic(39621) (Show Source): You can put this solution on YOUR website!
All your questions depend on finding the length and width of the rectangle.

Let w = width
Let L = length
, from description;
, from description.

Is that factorable? Use trial and check or use discriminant.
Discriminant,
------"Nice" whole number, so the quadratic in w is factorable.
-
Try finding factorization:
(3w____13)(w____5)--------gives 13 and 15. You want negative 5....
.
-
The meaningful solution there is

Back to the description's definition for length L,

.

You have what you need to answer your four questions.
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