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The length of a rectangle is 5 more than the width . If perimeter is 26, what is the area

 Jan 17, 2020
 #1
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L = W + 5

 

Perimeter  =  2 (L + W)

 

26  =  2 ( W + 5  + W)

 

26  = 2  ( 2W + 5)     divide both sides by 2

 

13 = 2W + 5      subtract  5 from both sides

 

8  = 2W   divide both sides by 2

 

4 = W

 

And L  = W + 5  =  9

 

And

 

Area =  W * L  =  4 * 9  = 36 units^2

 

 

cool cool cool

 Jan 17, 2020
 #2
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Area   A = (26/4+2.5)(26/4-2.5)

 Jan 17, 2020

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