To make a model of the Guadelupe River bed, Hermie used 1 inch of clay for 5 miles of the actual river's length. His model river was 4.5 feet (54 inches) long. How long is the Guadelupe River?

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

2/3=10/15

1/5=3/15

10+3=13/15

2 13/15 is the answer