SOLUTION: 4. Martin begins driving to work at 8:15 A.M. He drives 18 miles and arrives at his office at 8:39 A.M. Find Martin’s average speed in miles per minute. Use dimensional analysis

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Question 393057: 4. Martin begins driving to work at 8:15 A.M. He drives 18 miles and arrives at his
office at 8:39 A.M. Find Martin’s average speed in miles per minute. Use
dimensional analysis to check the reasonableness of your answer.
I think what I need to do is convert 18miles/24minutes but I really don't understand any of this and I am having difficulty getting help from my teacher. Can you please help and explain why you did what you did? Thank you for your time.
Katie

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Martin begins driving to work at 8:15 A.M. He drives 18 miles and arrives at his
office at 8:39 A.M. Find Martin’s average speed in miles per minute. Use
dimensional analysis to check the reasonableness of your answer.
distance traveled = 18 miles
Time traveled = 24 minutes
...
+speed+=+Distance%2Ftime
...
speed+=+18+miles+%2F+24+minutes+
...
speed+=+3miles%2F4+minutes
...
+speed+=+%283%2F4+%29+%28miles%2Fminute%29
...
m.ananth@hotmail.ca