Question

Estimate how many hours it would take to run (at 10 km/h) non-stop across the U.S. from New York to California. Suppose that the distance is about 3000 mi

Answer 1

Most of the information's that are given in the question is enough for solving this problem.
Speed of running = 10 km/h
We already know that
1 mile = 1.60934 kilometer
Then
3000 miles = 4828.032 kilometer
The total distance that needs to be covered = 3000 miles
Then
Number of hours required to cover the distance = 4828.032/10 hours
= 482.8 hours
I hope the answer has come to your help.

Answer 2

To answer the question, convert first the distance of 3000 miles to kilometers by the conversion factor 1 mile is 1.61 kilometer.
(3000 mi) x (1.61 km / 1 mile) = 4830 km
The time it would take to travel this distance is the quotient of distance divided by speed.
time = 4830 km / (10 km / h) = 483 h
Thus, the answer is 483 hours.