Respuesta :
Answer:
10 mph
Step-by-step explanation:
The distance traveled by A + the distance traveled by B = the total distance
Since distance = rate × time:
20 × 5 + B × 5 = 150
100 + 5B = 150
5B = 50
B = 10
B must travel at 10 mph.
10 mph is the rate B should travel.
How to find the speed?
The distance traveled by A + the distance traveled by B = the total distance
Since distance = rate × time:
20 × 5 + B × 5 = 150
100 + 5B = 150
5B = 50
B = 10
B must travel at 10 mph.
Average speed is more accurate to be used to count the time taken for travel because it is counted by averaging the minim and maximum speed.
Learn more about speed here: brainly.com/question/4931057
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