A Farmer fenced a rectangular area with $75$ metres of chicken wire. The rectangle is twice as long as it is wide. What are its dimensions?
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$\begingroup$A rectangle has two sets of equal sides. Denote those opposite sides by, say, $x$ and $y$, respectively. Thus the perimeter is given by $2x+2y = 75$ which implies $x+y = 37.5$. Next, we have one of the sides is twice as long as the other, giving us a second equation: $x = 2y$. Solving these two equations simultaneously gives the desired result.
$\endgroup$ $\begingroup$Hint: $$2(l+b)=75$$ where $l=2b$
giving you $b=12.5 m$ and $l=25m$
Kindly go through basics of pariimeters and areas again @OP. Sincere advice
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