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The length of a rectangle is 4 meters more than three times its width.  The perimeter of the rectangle is 56 meters.  What is the width?

 Jun 3, 2020
 #1
avatar+71 
0

P = 2L + 2w

 

18.4 = 2(3w+4) + 2w

 

18.4 = 6w + 8 + 2w

 

18.4 = 8w + 8

 

10.4 = 8w

 

w = 10.4/8 = 1.3

 

L = 3(1.3)+4 = 3.9 + 4 = 7.9

 

I hope that answers what you are looking for! cheeky

 Jun 3, 2020
 #3
avatar+1326 
+1

The length of a rectangle is 4 meters more than three times its width.  The perimeter of the rectangle is 56 meters.  What is the width?

 

w + 3w + 4 = 56/2

 

4w + 4 = 28

 

4w = 24

 

w = 6  smiley

Dragan  Jun 3, 2020
edited by Dragan  Jun 3, 2020
 #2
avatar+71 
+1

Hold up, I accidentally did the wrong perimeter. If you plug in 56 instead of 18.4, you will get the answer! Sorry about the inconvinience!

 Jun 3, 2020

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