Question

A storm is moving east towards your house at an average speed of 35 km/hr. If the storm is currently 80 kilometers from your house in how much time do you expect it to arrive

Answer 1

The storm is moving toward you at 35km/hr. How long until it travels to 80 kilometers to your house?
Distance = velocity * time
80km = 35 km/hour * x hours  Divide both sides by 35
2.29 hours = x

It will take 2.29 hours to reach your house. 

Answer 2

The problem given above will be solved by using the speed formula.
Speed is defined as distance over time, that is,
Speed [S] = Distance [D] / Time [T].
In the question, the value of speed that we are given is 35 and the value of D is 80, we have to find the value of time.
S = 35
D = 80
T = ?
S = D /T = 35 = 80 / T
35T = 80 
T = 80 / 35 = 2.29.
Therefore, T = 2.3 hour.