SOLUTION: An equilateral triangle has a base length of 3x - 5. Which expression below represents the perimeter of the triangle? A. 3x - 5 B. 6x - 10 C. 9x - 15 D. 9x^2 - 30x + 25

Algebra ->  Triangles -> SOLUTION: An equilateral triangle has a base length of 3x - 5. Which expression below represents the perimeter of the triangle? A. 3x - 5 B. 6x - 10 C. 9x - 15 D. 9x^2 - 30x + 25      Log On


   

Question 954406: An equilateral triangle has a base length of 3x - 5. Which expression below represents the perimeter of the triangle?
A. 3x - 5
B. 6x - 10
C. 9x - 15
D. 9x^2 - 30x + 25
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
an equilateral triangle is a triangle in which all three sides are equal
so, if side is 3x+-5 then the perimeter of the triangle will be:
P=%283x+-5%29%2B%283x+-5%29%2B%283x+-5%29
P=3x+-5%2B3x+-5%2B3x+-5
P=9x+-55
or simple
P=3%283x+-5%29
P=9x+-5
so, answer is C. 9x+-15