Convert minute to seconds (1 minute = 60 seconds), set up a proportion, cross multiply, and solve.
Proportion: [tex] \frac{100 ft}{5 sec} [/tex] = [tex] \frac{x}{60 sec} [/tex]
Cross multiply: 60 · 100 = 5 · x
Solve (divide both sides by 5): 1200 = x
Answer: 1200 ft
