Question

Adelino walks from his home to a position 1.1 km [W] of his home then to a position 3.5 km [E] of his home.

Determine the Adelino's total distance traveled. include units

Answer 1

Let's place the home in the origin. Form the origin to the point 1.1 km [W] he travelled

$$d_1 = 1.1km$$

From the point 1.1 km [W] to the point 3.5 km [E]  he travelled:

$$d_2 = 1.1km + 3.5km = 4.6km$$

Thus, the total distance is:

$$d = d_1 + d_2 = 5.7km$$

Answer. 5.7 km.