SOLUTION: the distance around a rectangular city block is 280 yards. if the length of the block is 10 yards less than twice its width, what are the dimensions of the block?

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Question 348033: the distance around a rectangular city block is 280 yards. if the length of the block is 10 yards less than twice its width, what are the dimensions of the block?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
width be x
length = 2x-10
perimeter = 280 yards
..
Perimeter = 2*(L+W)
2*(x+2x-10)=280
2*(3x-10)=280
/2
3x-10=140
3x=140+10
3x=150
/3
x=150/3
x= 50 yards width
length = 2x-10= 2*50-10
=90 yards length