Acommuter train travels 5252kilometers in 4545 minutes. what is its speed in kilometers per hour?

The speed of the commuter train is approximately 69.333 Km/hr

Explanation:

Speed of the train can be calculated using the following rule:

Note that the question requires the speed to be calculated in units kn/hour. Therefore, we should ensure proper units used

We are given that:

Distance covered by the train = 52 km

Time taken to cover this distance = 45 minutes which is hours

Now, we substitute with these givens in the above equation to get the speed of the train

This can be done as follows:

Km/hr

Hope this helps :)

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock