Question

This distance-time graph represents a journey made by Jo (image above)

At what speed was Jo walking for the first 30 minutes?
(in km/h) ​

Answer 1

Jo was walking at an average speed of 12 km/h for the first 30 minutes, as calculated by dividing the total distance of 6 km by the time of 0.5 hours.

Step-by-step explanation:

To determine the speed at which Jo was walking for the first 30 minutes, we need to calculate the average speed using the distance-time information provided. According to the reference information, during a 30-minute round trip to the store, Jo traveled a total distance of 6 km. The average speed is calculated by dividing the total distance traveled by the time taken to travel that distance.

In this case, Jo walked 6 km in 30 minutes, which is equivalent to half an hour. To find the speed in km/h, we divide the distance by the time in hours:

Speed = Total Distance / Total Time

Speed = 6 km / 0.5 hours

Speed = 12 km/h

Hence, Jo was walking at an average speed of 12 km/h for the first 30 minutes.

Answer 2

It's actually 6 km/h and for b) it's 10 minutes

Step-by-step explanation:

At 30 minutes the distance was 3km, so you multiply it by 2 to get 6km.

And then it's 10 minutes for part B)