a square and equilateral triangle have the same perimeters. the length of a side of the triangle is 4x+2 inches. The length of a side if the square is 2x+2 inches. Write and solve an equation to find the side length of the triangle, the side length of the square and their perimeter

For the triangle=4(0.5)+2=2

For the square=2(0.5)+2=3

Step-by-step explanation:

4x+2+4x+2+4x+2=2x+2+2x+2+2x+2+2x+2

12x+6=8x+8

12x-8x=-6+8

4x=2

x=0.5

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!