## Thinking Mathematically (6th Edition)

We can find the total distance $d$ in meters. $d = 6\times 700~m = 4200~m$ We know that 1 km = 1000 m We can convert the distance to units of km. $d = \frac{4200~m}{1}\times \frac{1~km}{1000~m} = 4.2~km$ The person has covered a distance of 4.2 kilometers.