One side of a rectangle is 3 inches shorter than the other side, and the perimeter is 54 inches. Which of the following equation
s could be used to determine the dimensions of the rectangle
2 answers:
Let x be the longer side of the rectangle
Side B: x-3
Perimeter: 2(l+w)
54"=2(x+x-3)
54"=2(2x-3)
54"=4x-6
54-6=4x
48/4=x
12=x
Therefore the longer side is 12" and the shorter side of the rectangle is (12-3)= 9"
Hope I helped :)
2(x)+2(x-3)=54 is the equation you would use where x is one side
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