SOLUTION: The length of a rectangle is 4cm more than the width. If the perimeter is 4cm more than three times the length, what is the width?

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Question 478696: The length of a rectangle is 4cm more than the width. If the perimeter is 4cm more than three times the length, what is the width?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,



The length of a rectangle is 4cm more than the width

Let x and (x+4cm) represent the width and length respectively

Question states***

P= 2(x+ 4cm) + 2x = 3(x+4cm) + 4cm

         x = 8cm, the width

         

CHECKING our Answer*** length is 12cm  (8cm+4cm)

  2*12cm + 2*8cm = 40cm = 3*12cm + 4cm = 40cm