Asked by Ebonny

Juma left his house 8:30 he drove a distance of 140km and arrived at 10:50a.m determine average speed in km/h
Answered by Reiny
find the time in hours from 8:30 am to 10:50 pm as a decimal number
Rate = distance/time, (you know both)
Answered by Damon
10 hr 50 min - 8 hr 30 min = 2 hr 20 min
20 min = 20/60 = 1/3 hr
so drove for 2 1/3 hr =7/3 hr
140 km / (7/3) hr = 420/7 = 60 km/hr
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