NEED HELP ASAP Adelia drove from her house to townsville one evening. the diagram below shows the time adelia left home, the time she arrived in townsville, and the distance she drove.(time was about 6:27 and arrival was about 6:42 and the distance she drove was 180 miles) What was adelia's average speed? A. 30 miles per hour
B. 45 miles per hour
C. 60 miles per hour
D. 75 miles per hour

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.