A hiker ascended 3/4 of a kilometer in 1 1/6 of an hour. What was the mountain hiker's ascent rate in kilometers per hour (kph)?(1 point)
Responses
12 kph
12 kph
3 kph
3 kph
16 kph
16 kph
9 kph
To find the ascent rate, you need to divide the distance ascended by the time taken.
The distance ascended is 3/4 of a kilometer.
The time taken is 1 1/6 of an hour, which is equal to 7/6 of an hour.
So, the ascent rate is:
(3/4) / (7/6) = (3/4) * (6/7) = 18/28 = 9/14 kilometers per hour.
The correct answer is 9 kph.