Question 225944
THE PERIMETER IS 1280, THE WIDTH IS 90 LESS THAN THE LENGTH, WHAT IS THE LENGTH AND WIDTH?


Step 1.  The perimeter P means adding up all the four sides of a rectangle.


Step 2.  Let w be the width.


Step 3.  Let w+90 be the length since the width is 90 less than the length


Step 4.  Then, P=w+w+w+90+w+90=1280.


Step 5.  Solving yields the following steps


*[invoke explain_simplification "w+w+w+90+w+90=1280" ]


For w=275 , then w+90=365 and P=2(275+365)=1280 which is a true statement.


Step 6.  ANSWER:  The length is 365 and the width is 275


I hope the above steps were helpful. 


For free Step-By-Step Videos on Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra or for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.


And good luck in your studies!


Respectfully,
Dr J


drjctu@gmail.com


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