SOLUTION: Karena walks 3 miles per hour and covers 12 miles for how long did she walk

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Question 940118: Karena walks 3 miles per hour and covers 12 miles for how long did she walk
Answer by MathLover1(20850) About Me  (Show Source):
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given:
s=3%28mil%2Fh%29 and
d=12mil
find: time t
d=s%2At
t=d%2Fs
t=12mil%2F3%28mil%2Fh%29
t=cross%2812%294cross%28mil%29%2Fcross%283%291%28cross%28mil%29%2Fh%29
t=4%281%2F%281%2Fh%29%29
t=4h
answer:
Karena walks 4h