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OpenStudy (anonymous):
it took Anthony 5 h 45 min to complete a 25-mi walkathon. What was his average speed in miles per hour? Round your answer to the nearest hundredth. a.about 4.35 mi/h b.about 2.27 mi/h c.about 3.34 mi/h d.about 1.55 mi/h
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OpenStudy (anonymous):
sumbul comment so i can give you a medal to
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
i still need the answer
OpenStudy (anonymous):
it is a
OpenStudy (anonymous):
thanks\
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OpenStudy (anonymous):
5 hour 45 minutes =5+(45/60) hour=5+.75=5.75 hour and then divide 25 by 5.75
OpenStudy (lilg132):
a. 4.347 mi/h 5 hours 45 = 345 minutes 345 / 25 = 13.8 minutes per mile 60 / 13.8 = 4.347 mi/h
OpenStudy (anonymous):
both methods are equivalent
OpenStudy (anonymous):
either convert from hour to min or min to hour
OpenStudy (anonymous):
ok thanks
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OpenStudy (anonymous):
From Mathematica:\[\text{Round}\left[\frac{25}{\left(5+\frac{45}{60}\right)},0.01\right]=4.35\text{mph} \]
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