Final answer:
The equation describing the relationship between kilometers and miles when there are 0.6 miles in one kilometer is y = 0.6x.
Step-by-step explanation:
The equation that describes the relationship between x (number of kilometers) and y (number of miles) where there are 0.6 miles in one kilometer is y = 0.6x. To establish this relationship, you multiply the number of kilometers (x) by 0.6 to get the equivalent number of miles (y). Examples are not provided, but this conversion can be applied to any quantity of kilometers to find its equivalent in miles.