Question 224323
This is a classic perimeter problem and I have TONS of these on my website--more about that later.


Let x= width of the rectangle
2x+5= length of the rectangle


2W + 2L= P
2(x) +2(2x+5)=340
2x+4x+10= 340
6x+10=340
6x=330
x=55 yards  Width


2x+5= Length
2*55+5
110+5= 115 yards Length


Check:  2W+ 2L= 340
2*55+2*115=340
110+230=3340


It checks!!


As I mentioned, I have a COMPLETE explanation with examples and exercises with answers on my website!!  To find my website, do a "Bing" Search for my last name "Rapalje".  Look for "Rapalje Homepage" near the top of the search list.  Then, near the top of my Homepage, look for "Basic, Intermediate and College Algebra: One Step at a Time," select "Basic Algebra" and in "Chapter 1", you will find a couple of sections on Word Problems.  In particular, for Perimeter problems look in  "Section 1.10 Word Problems, Part I" near the end of the section.  This is my own non-traditional explanation that my own students have found MUCH easier to understand than the traditional textbooks.  In addition to my explanations, examples and exercises, I have my "MATH IN LIVING COLOR" pages where I solved many of these exercises IN COLOR!!


R^2


Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamone Springs Campus