A person walks first at a constant speed of 4.50 m/s along a straight line from point circled A to point circled B and then back along the line from circled B to circled A at a constant speed of 2.95 m/s.

What is her average speed over the entire trip?
I got 3.7 but it says it's wrong

To find the average speed over the entire trip, we need to calculate the total distance traveled and then divide it by the total time taken.

Let's break down the trip into two parts:

1. From point A to point B:
The person walks at a constant speed of 4.50 m/s. Let's assume the distance from A to B is d1.
Using the formula distance = speed x time, we can write the equation as:
d1 = 4.50 m/s x time1

2. From point B to point A:
The person walks at a constant speed of 2.95 m/s. Let's assume the distance from B to A is d2.
Using the same formula again:
d2 = 2.95 m/s x time2

Now, the total distance traveled is the sum of distances from A to B and from B to A:
total distance = d1 + d2

The total time taken is the sum of the time it took to travel from A to B and from B to A:
total time = time1 + time2

To find the average speed, we divide the total distance by the total time:
average speed = total distance / total time

To solve this problem, we need more information. Specifically, we need the values of time1 and time2 or the distances d1 and d2. Once you provide those values, I can help you calculate the average speed of the entire trip.