Answered

Looking for trustworthy answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Get expert answers to your questions quickly and accurately from our dedicated community of professionals. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

If a car travels 20 km at a speed of 20km/h, what will the speed be for the remaining 20km if the average speed of the journey is 24km/h?

Sagot :

Answer:

12

Explanation:

avarage speed = total distance/total time

our total distance is 40km

the first 20km speed was 20km/h, so the time os 1 hour here

for the next 20km, we dont have the time, so let the time here be = x

so total time is x+1 km/h

and total distance is 40km

and the avarage is 24km/h

so =>

[tex] \frac{40}{1 + x} = 24[/tex]

solve for x to find the time in the second 20km

so x=0.6

then find the speed of the second 20km by diving the distance on time =>

[tex] \frac{20}{0.6} = 12[/tex]

so the speed in the second 20km is 12km/h

Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.