Sound travels at a speed of 340.11 m/s. How long does it take for sound of thunder to travel 1485 m?

Answer 1

distance (d)= velocity(v) * time (t)

so t = d/v

When doing anything like this, make sure the units are compatible---the rigorous method is "dimensional analysis"---in this case, We would write:

A = Bmeters / Cmeters/sec

Cancel out meters and bring sec to the top, and we have A sec.