Vincent sets off from his home on a 70 km journey to his friend's house. He travels the first 40 km of his journey at an average speed of 40 km/h and the remaining at an average speed of 60 km/h. Calculate the average speed for his entire journey.

Step-by-step explanation:

Average speed can be given by:

, where is the total distance travelled and is the time it takes to travel said distance.

Vincent total travels kilometers in a total time of:

.

Therefore, his average speed during the entire trip is:

.

correct answer is option b.

step-by-step explanation:

the true statement about geometric figure is option b that is one line can be drawn through all three points.

if three points are on the same plane, they can be connected by a line.