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A rectangle is x+4 long and x wide. Write and solve an inequality to find the values of x for which the perimeter of the rectangle is less than 112.

Guest Apr 4, 2017
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perimeter of a rectangle = length + length + width + width

 

length + length + width + width = perimeter of a rectangle

 

(x +4) + (x+4) + x + x < 112

 

x + 4 + x + 4 + x + x < 112

 

4x + 8 < 112

4x < 104

x < 26

hectictar  Apr 4, 2017
edited by hectictar  Apr 4, 2017

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