SOLUTION: Find the length of a rectangular lot with a perimeter of 82 m if the length is 5 m more than the width.
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Question 403405: Find the length of a rectangular lot with a perimeter of 82 m if the length is 5 m more than the width.
Answer by Mr.Math(29) (Show Source): You can put this solution on YOUR website!
Let the length=a, and width=b, then, by the condition of the problem:
a = b+5
P = 2(a+b)
a = b+5
82 = 2*(a+b)
a = b+5
82 = 2* (b+5+b)
a = b+5
82 = 4b + 10
b = 18 => a=18+5=23
So, length= 23m
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