A rectangle's width is one-seventh its length, and its perimeter is 144m. Find the dimensions of the rectangle.

Question

The length is _____m and the width is _____m. 

Answer 1

Hi Alexis,

 

From the statement of the problem

 

W = L/7

 

and the perimeter is twice the width plus the height

 

(W+L) * 2 = 144

 

solve for theses two equations gives the value for L and W.  

 

I will help you part of the way

 

W + L =72  ===> W = 72 - L

 

Also W = L/7, so set them equal and solve for L

 

L/7 = 72 - L

 

after you love for L plug it into either of the first equations to get W.   If you need more help ask again.

 

Good luck