Question 79361
The total perimeter of the rectangle is given by 2l + 2w 


Where l is the length and w is the width of the rectangle. 


By data, the perimetr of the rectangle is given by 43 inches. 


And the length of the rectangle is 7 in


2(7) + 2w = 43


14 + 2w = 43 


2w = 43 - 14 


2w = 29


Hence, w = {{{29/2}}} 


w = 14.5 



Thus, the width of the rectangle is w = 14.5 in 


Hence, the solution. 



I hope the above steps are clear. Well if you have any doubt in Math, I'll surley help you with those. 
   
  Regards
  Chitra
  Online Math tutor
  www.knowledgeonlineservices.com