Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Maths
| Geometry
One Answer Below
Anyone can contribute an answer, even non-tutors.
Can anyone pls help me asap thanks
Date Posted: 4 years ago
Views: 260
The average speed would be the total distance traveled divided by the total time.
60km/h x 3h = 180km.
Total distance = 180km + 140km (remaining) = 320km
Time taken for remaining 140km = 140km divided by 70km/h = 2h.
Total time for entire journey = 2h + 3h = 5h.
Hence, average speed for the whole journey:
320km divided by 5h = 64km/h
60km/h x 3h = 180km.
Total distance = 180km + 140km (remaining) = 320km
Time taken for remaining 140km = 140km divided by 70km/h = 2h.
Total time for entire journey = 2h + 3h = 5h.
Hence, average speed for the whole journey:
320km divided by 5h = 64km/h
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Find the distance for the first part. Then find the time taken for the second part. Add the distance together then divide by the total time.
Date Posted:
4 years ago
360 Tutoring Program