SOLUTION: Find the value of x as it relates to the rectangle. Area: 60 cm^2 Length:x Width:x+4

Question 1194117: Find the value of x as it relates to the rectangle.
Area: 60 cm^2
Length:x
Width:x+4
Answer by ikleyn(52817) (Show Source): You can put this solution on YOUR website!
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Find the value of x as it relates to the rectangle.
Area: 60 cm^2
Length:x
Width:x+4
~~~~~~~~~~~~~~~~~~

The area is the prodict of the length by the width.


With the given input data, you can guess the answer mentally in 5 seconds:  x = 6 cm.


Alternatively, you may solve this quadratic equation


    x*(x+4) = 60,

    x^2 + 4x - 60 = 0.


Factor

    (x-6)*(x+10) = 0.


It leads you to the same answer.

Solved.

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