recently the number of visitors to Machu Picchu is limited to 2500 visitors daily
the area of Machu Picchu is about 13 km squared
to calculate Machu Picchu current daily visitor density daily visitors per square mile use dimensional analysis
to show your work round to the nearest hundred people per square mile
Density of visitors per squared kilometer = 2500/13
13 km² = 5.01933 squared miles
Density of visitors per squared mile = 2500/5.01933 = 498.07 ≈ 500 rounded to the nearest hundred
Answer:
500 peple per square mile