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shusha [124]
2 years ago
7

If it takes B hours to walk a certain distance at the rate of 3 miles per hour, the number of hours it takes to return the same

distance at 4 miles per hour is...? Will mark brainlist
Mathematics
1 answer:
natita [175]2 years ago
5 0

Answer:

It will take 0.75B hours for the return leg

Step-by-step explanation:

Here, given that the first leg of the trip was for B hours at 3 miles per hour , we want to calculate the number of hours the return leg will take at 4 miles per hour given that it is the same distance.

Mathematically, we know that ;

Distance = speed * time

So the distance taken on the first leg of the trip would be;

Distance = 3 miles per hour * B hours = 3B miles

Now, this distance was traveled on the return leg also.

This means that the time taken here will be;

Time on return leg = distance/speed = 3B/4 = 0.75B hours

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