Homework Help: math

Posted by Da S on Sunday, March 18, 2012 at 8:50am.

Da Ming walks from his school to his house at a speed of 5km/h.he takes 20 minutes to reach home.what is the distance between his school&his house? Convert the time from minutes to hour and correct to 2 decimal places

math - Reiny, Sunday, March 18, 2012 at 9:19am
20 min = 20/60 hrs = 1/3 hr

distance = time x speed
= (1/3)(5) = 5/3 or appr 1.67 km

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