SOLUTION: Second side of a triangle is twice as long as the first side. the third side is 1 centimeter shorter then the second side. If the perimeter is 11 1/2 centimeters long, how long is

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Question 130702This question is from textbook Introductry and internediate algebra
: Second side of a triangle is twice as long as the first side. the third side is 1 centimeter shorter then the second side. If the perimeter is 11 1/2 centimeters long, how long is each side? Thanks Dan This question is from textbook Introductry and internediate algebra

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
Let s be the second side.
s + s/2 + s-1 = 23/2
2s+s+2(s-1)=23 Multiply each side by 2 to eliminate fractions.
2s+s+2s-2=23
5s=25
s=5
1st side=2.5
3rd side=4
.
Ed