Question 1049061
In 1860 and 1861, riders of the Pony Express delivered mail on horseback from
St. Joseph, Missouri, to Sacramento, California. The trip of 1966 miles took
about 10 days (240 hours).
 a. What was the riders’ average speed to the nearest tenth of a mile per hour?
To find mi/hr, divide the miles by the hours.
Is that not obvious?
============================
 b. A student estimates that it would take a Pony Express rider less than
6 hours to travel 75 miles. Is the student’s estimate reasonable? Explain

Make a proportion out of this.