Question 827772
last year,mr.harpter completed a 50-mile bike race in 4 hours 20 minutes.
 this year he would like to complete the same race in 4 hours.
 how many miles per hour should Mr.Harpter cover in order to complete the bike race in 4 hours ?
:
speed = dist/time
s = {{{50/4}}}
s = 12.5 mph