the constant is -4 because Y is proportional to x
m is 12 and x is 11.25
Step-by-step explanation:
Find side m of the triangle. Given the sides are 3m - 4, 3m - 4 and m. Perimeter = 76 inches
⇒ m + 2(3m - 4) = 76 (Since perimeter of a triangle = sum of its sides)
⇒ m + 6m - 8 = 76
⇒ 7m = 84
⇒ m = 12 inches
Find x. Given side of the square is 4x + 5 and perimeter = 200
⇒ 4 × (4x + 5) = 200 (Since perimeter of a square = 4 × side)
⇒ 16x + 20 = 200
⇒ 16x = 180
⇒ x = 11.25
