Answer:
24.5
Step-by-step explanation:
Because the figure is a parallelogram, the opposite sides are equal in length.
1. Set the equations equal to each other:
JK = LM ⇒ 7x = 3x+14
2. Subtract 3x from both sides
7x = 3x+14
- 3x - 3x
___________
4x = 14
3. Divide both sides by 4
(1/4)4x = (1/4)14 ⇒ x = 3.5
4. Plug the value of x into the equation of JK
JK = 7x ⇒ JK = 7 (3.5)
5. Multiply
JK = 24.5
