Homework Help: math

Posted by sara on Thursday, February 4, 2010 at 5:49pm.

The perimeter of a triangle is 26 c,. Side a of the triangle is 3 cm longer than side b. Side c is 1 cm shorter than twice side b. Find the length of each side.

math - bobpursley, Thursday, February 4, 2010 at 5:56pm
a+b+c=26
a=b+3
c=2b-1

can you take if from here?
math - Reiny, Thursday, February 4, 2010 at 5:59pm
a = b+3
c = 2b - 1

a + b + c = 26
b+3 + b + 2b-1 = 26
b = 8

a = 11
b = 8
c = 15

Do these answers satisfy the conditions stated in your problem?

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