Question

2. Convert 77°F into degree celcius.


3. A car moves at a speed of 20km/h for 15 minutes and then

at a speed of 60 km/h for next 15 minutes. Calculate the total

distance covered by the Car.



4. A School bus takes 45 minutes to cover a distance of 27

km. Calculate its speed in km/h and m/s.​

Answer 1

Answer:

To convert temperatures in degrees Fahrenheit to Celsius, subtract 32 and multiply by . 5556 (or 5/9).

Thus, answer is 25°C....

Distance covered fast-

Speed of the car for the first 15 minutes:

20 Km/hr.

Now, By this speed the car travels 20 Km in an hour. An hour has 60 minutes.

So, 20 km = 60 minutes

Dividing both sides by 4,

We get, 5 km = 15 minutes

So the car travels 5km here.

For the second 15 minutes-

The car travels 60km/ hr

So, 60 km = 60 minutes

Dividing both sides by 4,

We get 15 Km = 15 minutes

So the car travels 15 km in this case.

So the total distance travelled by the car is (15+5) km = 20 km

Time taken by bus to travel 27km = 45minutes.

= 45/60 hours ..

therefore speed of bus in km hr= distance/time

= 27×60/45

=1620/45

=36km/hr..

time taken by bus to travel 27km = 45 mins=45×60sec.

distance travelled by bus in 45 mins = 27km

= 2700m..

speed of bus in m/sec =

2700

_______

45×60

=2700/2700

=1m/sec..

therefore speed of bus in km/hr=36km/hr.

speed of bus in m/sec.=1m/sec..

Answer 2

Answer:

hey here is your answer.

Explanation:

1. 25°c.
2. the answer is above.
3. speed of bus in km/h =36km/h.
4. speed of bus in m/sec=1m/sec.
5. please mark me brainlist answer.