Answer:
see explanation
Step-by-step explanation:
The perimeter is the sum of the 3 sides of the triangle.
Sum the sides and equate to 54, that is
3x + 4x + 5x = 54, that is
12x = 54 ( divide both sides by 12 )
x = 4.5
Thus
AB = 3x = 3 × 4.5 = 13.5 in
BC = 4x = 4 × 4.5 = 18 in
AC = 5x = 5 × 4.5 = 22.5 in
Answer:
2
Step-by-step explanation:
thanks
Answer:
x=-2.5
Step-by-step explanation:
ok
sotake +9 to the other side
10x-6x=-1-9
4x=-10
divide both sides by 4x
x=-2.5
Answer is -11/7 (extra letters)
Answer:
Good job! Very proud!
Step-by-step explanation:
