SOLUTION: Marcella leaves home at 9:00 am and drives to school,arriving at 9:45 am. If the distance between home and school is 27 mi,what is marcella's average rate of speed?

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Question 521549: Marcella leaves home at 9:00 am and drives to school,arriving at 9:45 am. If the distance between home and school is 27 mi,what is marcella's average rate of speed?
Answer by solver91311(24713) About Me  (Show Source):
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That depends. What speed unit do you want use to express the average speed?

27 divided by 45 gives you miles per minute

27 divided by 3/4 gives you miles per hour

(27 times 5280) divided by (45 times 60) gives you feet per second.

John

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