SOLUTION: The length of a rectangle is 7 inches longer than its width. The area of the rectangle is 260 square inches. What is the length of the rectangle in inches?

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Question 1171979: The length of a rectangle is 7 inches longer than its width. The area of the rectangle is 260 square inches.
What is the length of the rectangle in inches?
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.

You have two ways.


The first way is FAST. You may GUESS the answer in 4 seconds:  the length is 20 inches.



The second way is to write this "area" equation for the length x

    x(*(x-7) = 260.


It is a quadratic equation.


Reduce it to its standard form, and then solve

using the quadratic formula or factoring.


You will get the same answer.

Solved.

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To see many similar solved problems, look into the lesson
    - Problems on the area and the dimensions of a rectangle
in this site.