Speed = distance ÷ time
What is the average speed of a bus that travels 15 km in 2 hours?

Explanation:

A bus travels 15 km in 2 hours. What is the average speed in this time?

Franklin Templeton™.

Hii,

Without wasting your time let's come to the question , it is asking us to find the speed of the bus.

Ok, so let's right down all the given details.

Distance- 15 Km.

Time duration- 2 hours.

As we can see that time is given in hours where as distance is given in Km, so, first of all convert both of them in equal standard forms.

15 km- 15*1000 meters= 15000m.

20 hours- 2*3600 seconds= 7200 seconds.

Distance- 15000 m and Time- 7200 seconds, respectively.

Now, applying the formula to calculate speed, i.e.

Speed= Distance travelled/Time taken

Speed= 15000/7200

Speed= 2.0 m/s or 2 m/s

And, please never forget to mention the unit after calculating the speed i.e. meter/second.

Thank you so much….

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.