SOLUTION: Bob rides his horse with a constant speed of 6 miles per hour. How long will he take to travel a distance of 21 miles ? show your answer

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Question 947569: Bob rides his horse with a constant speed of 6 miles per hour. How long will he take to travel a distance of 21 miles ? show your answer
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

Bob rides his horse with a constant speed of s=6%28mil%2Fh%29.
How long (t) will he take to travel a distance of d=21mil?
d=s%2At
t=d%2Fs....plug in given values
t=21mil%2F6%28mil%2Fh%29.......simplify
t=cross%2821%297cross%28mil%29%2Fcross%286%292%28cross%28mil%29%2Fh%29
t=%287%2F2%29h
t=3.5h
or 3h30'