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20-06-2017
Mathematics

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the lengths of the sides of a triangle are consecutive integers. find the length of the longest side if it is 22 units shorter than the perimeter.

Respuesta :

27-06-2017

P=x +(x+1) + (x+2)
P-22 = x+2

P=3x + 3
P= x + 24

Solving: by subtracting the two equations yields 0 = 2x-21 then x = 10.5

Longest side is then x+2 = 12.5

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