Final answer:
To find x and JK in a geometry and algebra problem, we need to use the equation xf - xo = x - JK, and substitute the known values to solve for x. Then, we can find JK by using the equation JK = x - 2 km.
Step-by-step explanation:
To solve for x, we need to identify the knowns and choose an equation to use. Let's assume that the unknown x represents the length of line segment JK. Based on the information given, the knowns are xf = 6.70 km and xo = 4.70 km.
Using the equation xf - xo = x - JK, we can substitute the known values to solve for x. 6.70 km - 4.70 km = x - JK. Simplifying further, we have 2 km = x - JK.
To find x, we need to find JK. Since JK is equivalent to the difference between x and 2 km, we have JK = x - 2 km. Now we can plug our known value of x into this equation to find JK.