Question

A family takes a summer vacation to Florida. They drive for 8 hours before stopping at a hotel for the night. They

Answer 1

Average speed of the trip = 52 km/hr

Further explanation  

Distance is the length traveled by an object within a certain of time .

Average speed = total distance/total amount of  time ,

Can be formulated :

$\tt S(speed)=\dfrac{D}{T}$

Total distance travelled : 1560 km

Total time : 8 hr + 12 hr + 10 hr = 30 hr

$\tt avg.speed=\dfrac{tot~D}{tot~T}\\\\avg.speed=\dfrac{1560}{30}\\\\avg.speed=52~km/hr$