SOLUTION: if an equilateral triangle with side x has the same perimeter as another triangle with sides 5,8 and x what is the value of x?

SOLUTION: if an equilateral triangle with side x has the same perimeter as another triangle with sides 5,8 and x what is the value of x?

Algebra.Com

Question 457158: if an equilateral triangle with side x has the same perimeter as another triangle with sides 5,8 and x what is the value of x?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
3x=5+8+x
2x=13
x=6.5
.
Ed
RELATED QUESTIONS
An equilateral triangle has a perimeter of 18 inches. What is the perimeter of a square... (answered by josgarithmetic)

Use an equation to find the value of x. There's a scalene triangle with two sides that... (answered by stanbon)

what is the perimeter and area of an equilateral triangle with side length 4 feet (answered by edjones)

An equilateral triangle has a side of 4 decimeters. A new triangle is formed by joining... (answered by solver91311)

The figure shows an equilateral triangle with its sides as indicated. Find the length of... (answered by ikleyn,Boreal)

The length of a side of an equilateral triangle is represented by 2x-1. If the perimeter... (answered by mananth)

What is the length of each side if a square has the same perimeter as a equilateral... (answered by lwsshak3)

If all of the following triangles have the same perimeter, which has the greatest area? (answered by stanbon)

Find the side of a square with the same perimeter as an equilateral triangle with side 10 (answered by solver91311)