Answer:d-6.7 km
Explanation:
Given
Bicyclist pedals at a speed of 5 km/h
so his speed in meter per second
[tex]5\times \frac{5}{18}=\frac{25}{18} m/s[/tex]
In 80 minutes he would travel
Distance traveled[tex]=\frac{25}{18}\times 80\times 60=6666.667 m\approx 6.67 km[/tex]
