A train travels 228km in 4 hours and 45 minutes. What is its average speed in kilometers per hour?

48 km/h

Step-by-step explanation:

The average speed is calculated by distance divided by time. So 228 / 4.45 gets the answer.

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: