Answer:
3.75 miles
Explanation:
You want to know the number of miles represented by 6 km, when the relationship is 1.6 km = 1 mile.
Conversion factors
Anytime measures are related by a constant conversion factor, the values of the measures in one unit are proportional to the values expressed in a different unit. That is, the ratio of km to miles is a constant.
Application
We can let d represent the distance between the school and the park.
miles / km = (1 mi)/(1.6 km) = d/(6 km) . . . . miles and km are proportional
Multiplying by 6 km, we get ...
d = (6 km)(1 mi)/(1.6 km) = (6/1.6) mi ≈ 3.75 mi
The school and the park are 3.75 miles apart.