SOLUTION: The perimeter of a triangle is 17cm. The first side is twice the length of the second side; the third side is 1cm less than 3 times the length of the side. What are the lengths of

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Question 899873: The perimeter of a triangle is 17cm. The first side is twice the length of the second side; the third side is 1cm less than 3 times the length of the side. What are the lengths of the side of the triangle?
Found 2 solutions by suzanna18, MathTherapy:
Answer by suzanna18(1) About Me  (Show Source):
You can put this solution on YOUR website!
The second side would be x
So the first side would be 2×x
And the third is 3×x-1
So the perimeter is 17= x + 2×x + 3×x-1
16= 6×x
16/6= 6×x/6
x= 8/3
2×x= 16/3
3×x-1=7

Answer by MathTherapy(10551) About Me  (Show Source):
You can put this solution on YOUR website!

The perimeter of a triangle is 17cm. The first side is twice the length of the second side; the third side is 1cm less than 3 times the length of the side. What are the lengths of the side of the triangle?


Length of 2nd side: highlight_green%283%29 cm

Length of 1st side: 2(3), or highlight_green%286%29 cm

Length of 3rd side: 3(3) - 1, or highlight_green%288%29 cm

You can do the check!! 



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