18.87 inches the cube root of 6720
Velocity of the car is equal to the distance travelled by the time spent.
If V= velocity, d = distance & time = t, then
the equation becomes V=d/t
10k+(-1)=4k+(-43)
10k-1=4k-43
Subtract 45 from both sides and add 1 to both sides:
6k=-42
Divide by 6 on both sides
k= -7
B intersection is the correct answer
