the lenths of the sides of are 1/x, 1/2x, and 2/3x meters. Find a rational expression for the perimeter of the triangle..can anyone help pls..im bad at word problems

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01-10-2017
Mathematics

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the lenths of the sides of are 1/x, 1/2x, and 2/3x meters. Find a rational expression for the perimeter of the triangle..can anyone help pls..im bad at word problems

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mathmate mathmate · Answer 1 · 2017-10-01T03:14:48+02:00

Please use parentheses (especially for denominators) when interpreting fractions.
For example, the parentheses of 1/(2x) is mandatory, otherwise 1/2x means (1/2)x by the rules of PEMDAS.
Similarly for 2/3x (or 2/(3x).

From the look of it, I assume you mean the side lengths are 1/x, 1/(2x), 1/(3x). If it is the case, the solution follows:
The perimeter is the sum of the three sides.
so perimeter = 1/x+1/(2x)+1/(3x)=6/(6x)+3/(6x)+2/(6x)=11/(6x).