Answer:
77.1 feet
Step-by-step explanation:
Scale model:
Height = 18 inches
Width = 2.5 inches
Actual monument:
Height = 555 feet
Width = x feet
Write a proportion:
[tex]\dfrac{\text{Scale height}}{\text{Actual height}}=\dfrac{\text{Scale width}}{\text{Actual width}}\\ \\ \\\dfrac{18 \ inches}{555\ feet}=\dfrac{2.5\ inches}{x\ inches}\\ \\ \\x=\dfrac{555\ feet\cdot 2.5\ inches}{18\ inches}\approx 77.1\ feet[/tex]
