Question

A car travels at a speed of s miles per hour. It covers 126 miles in 3 hours.

The equation that can be used to find the value of s is

Answer 1

speed = distance/time

Explanation:

s= 126/3

s= 42 miles per hour

Answer 2

s=(126*1.6*1000)/(3*60*60)

=(12600*1.6)/(3*3600)

=20160/10800

=2m/s