Asked by bob

You ride your bike at an average of 12 miles per hour on the way to school, and at an average of 15 miles per hour on the way home. The total ride time is 22 minutes. How far away is school? Round your answer to the nearest hundredth of a mile
Answered by oobleck
the speeds are in mi/hr, so make sure the total time is expressed in hours, not minutes.
since time = distance/speed,
d/12 + d/15 = 22/60
Now solve for d.
Answered by Antidisestablishmentarianism
Oobleck could you help me on my question? It's urgent...