an aircraft's reading shows
time 8:55 at distance travelled 957km
time 9:07 at distance travelled 1083
calculate distance travelled in km
calculate the average speed of aircraft in km/h
(for the 1st question 1083-957= 126km)
(the second one should i add 1083+957km then divided it by both times minuses or the both times added to get the average speed)
http://www.jiskha.com/display.cgi?id=1245085073
I will assume you want the avg speed between 8:55 and 9:07. We cannot calculate the average speed for the whole trip since we don't know the starting time.
average speed = total distance/total time
= 126/(12/60) , time from 8:55 to 9:07 = 12 min = 12/60 hrs
= 630 km/h
how did you get 12 min from 8:55 to 9:07?? and is the 1st answer that i have correct... because the link says otherwise
from 8:55 to 9:00 is 5 minutes
from 9:00 to 9:07 is 7 minutes, so .....
Your question "calculate distance travelled in km" is not clear
Do you want the total distance travelled, that would be 1083
between 8:55 and 9:07 it would be 126 km
Overall, a very poorly worded question.
that is what was asked it never said total distance it said calculate distance traveled in km
To calculate the distance travelled in kilometers, you correctly subtract the initial distance from the final distance. So, in this case, it would be 1083 km - 957 km = 126 km. This means that the aircraft traveled a distance of 126 km.
To calculate the average speed of the aircraft in km/h, you need to divide the distance traveled (126 km) by the time taken (in hours). To determine the time taken, subtract the initial time from the final time. In this case, the time taken is 9:07 - 8:55 = 0 hours and 12 minutes (or 0.2 hours).
So, to calculate the average speed, divide the distance by the time:
Average speed = Distance / Time = 126 km / 0.2 hours = 630 km/h.
Therefore, the average speed of the aircraft is 630 km/h.