SOLUTION: Gabriel drives 9km (correct to the nearest km) to work, in 36 minutes (correct to the nearest minute). Find the least possible average speed in kilometres per hour.

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Question 1059730: Gabriel drives 9km (correct to the nearest km) to work, in 36 minutes (correct to the nearest minute).
Find the least possible average speed in kilometres per hour.

Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
convert 36 minutes to a fraction of an hour
:
36/60 = 6/10 = 0.6 of hour
:
rate(r) * time(t) = distance(d)
:
r * 0.6 = 9
:
r = 9 / .6 = 15
:
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least possible rate is 15 km per hour
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