Ling lives 2 miles from school. It took him 15 minutes to bike from school to home. The first half of the distance he biked at a

Question

Alexandra [31]

3 years ago

8

Ling lives 2 miles from school. It took him 15 minutes to bike from school to home. The first half of the distance he biked at a

speed of 12 mph. What was his speed for the remaining distance? What was his average speed?

Mathematics

2 answers:

kodGreya [7K] · Answer 1 · 2022-05-30T08:38:10+03:00

kodGreya [7K]3 years ago

8 0

He was going 6 mph for the remaining distance
the average is 9

lisov135 [29] · Answer 2 · 2022-05-30T06:33:27+03:00

1 mile at 12 m/h is .2 m/min
1 mile at .2 m/min (1/.2) = 5 min So the first mile took 5 minutes
To find how fast the second mile was:
You know it was 1 mile and it took 10 minutes
1/10=.1 m/min which is 6 m/h
The average speed is 6+12/2=9 m/h

Hope that helps. Feel free to ask any questions.