Respuesta :

Answer:

51.1147540984

Step-by-step explanation:

What we know:

- 61 feet per second

- 3118 feet

- 187 feet speed

- Duration: 3118 divided by 61 = 51.1147540984

D stands for distance - 3118 feet

R stands for rate of speed - 187 feet

T - time

It would be 51.1147540984