SOLUTION: I am having a difficult time trying to figure out this equation: A rectangle has a width of 4 and a length of 5. What number can be added to the widths and lengths so that the re

Algebra ->  Rectangles -> SOLUTION: I am having a difficult time trying to figure out this equation: A rectangle has a width of 4 and a length of 5. What number can be added to the widths and lengths so that the re      Log On


   

Question 873290: I am having a difficult time trying to figure out this equation:
A rectangle has a width of 4 and a length of 5. What number can be added to the widths and lengths so that the resulting perimeter is 5 times the original perimeter?
Thank you very much for your help! (this is my mom's email)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,



P = 2L + 2w

 +2%284%2Bx%29+%2B+2%285%2Bx%29+=+5%282%2A8+%2B+2%2A5%29

     8 + 2x + 10 + 2x = 130

                 4x = 112

                  x = 28 need to add to both the original L and w

CHECKING our answer***

  2(4+28) + 2(5+28) = 64 + 66 = 130

Wish You the Best in your Studies.