SOLUTION: A rectangle has a perimeter of 216 meters. The length of the rectangle is 3 meters more than twice it breadth. 1.write an expression for its length if the breadth is b meters 2.

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Question 987068: A rectangle has a perimeter of 216 meters. The length of the rectangle is 3 meters more than twice it breadth.
1.write an expression for its length if the breadth is b meters
2.find the length of the rectangle in meters

Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
1) For L=length: L=2b+3
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2) P=perimeter;
P=2%28L%2Bb%29
P%2F2=L%2Bb
P%2F2=%282b%2B3%29%2Bb
P%2F2=3b%2B3
216%2F2=3b%2B3
108=3b%2B3
105=3b
35=b The breadth is 35 meters.
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L=2b%2B3
L=2%2835%29%2B3
L=73meters
ANSWER: The length of the rectangle is 73 meters.