SOLUTION: 4. The length of each side of an equilateral triangle is (x+5) centimetres. Write an expression in terms of x for the perimeter of the equilateral triangle. Give this in its si

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: 4. The length of each side of an equilateral triangle is (x+5) centimetres. Write an expression in terms of x for the perimeter of the equilateral triangle. Give this in its si      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 929883: 4. The length of each side of an equilateral triangle is (x+5) centimetres.
Write an expression in terms of x for the perimeter of the equilateral triangle. Give this in its simplest form.
If the perimeter is 22.5 cm work out the value of x.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
each side of an equilateral triangle is (x+5)cm
......
P = (x+5) + (x+5) + (x+5) = 3x + 15
P = 3x + 15
P = 22.5
...........
22.5 = 3x + 15
7.5 = 3x
2.5 = x