You are home from school steadily at 95 km/h for 130 km .It then begins to rain and you slow down to 65km/h.You arrived home after driving 3hrs and 20 minutes.
a)How far is your hometown from school?
b)What was your average speed?

Question

You are home from school steadily at 95 km/h for 130 km .It then begins to rain and you slow down to 65km/h.You arrived home after driving 3hrs and 20 minutes.
a)How far is your hometown from school?
b)What was your average speed?

anonymous · Answer

My teacher got Finding :total distance 
                                 speed

What is given in the question is:distance =130km(d1)
speed= s1=95km/h
speed 2 =s2=65km/h
t1-time 1=3.20minutes

anonymous · Answer

3 +20/60 =3.33s

d1=130km
d2=?

solution: s2=d2/t2


initial t1=?
second t2+?

anonymous · Answer

why did he put s2=d2/t2 i thought the question is asking for distance , since it says how far..

abmon98 · Answer

Time driving 95km/h can be found with 
(speed=Distance/Time), (Speed*Time=Distance), (time = distance/speed) 
Time = 130 km/95km/hr = 1.37 hours or 1 hour 22 min. 
Total time of trip is 3 hr. 20 min. So, time driving 65 km/hr = 1 hour 58 min
Distance traveled while driving 65km/hr can be found with (d = speed x time) 
Distance = 65 km/hr x 1.97 hours = 128 km 
Total distance traveled= 130 km + 128 km = 258 km
Average Speed=Total Distance/Total Time
A.Speed=258 km/3.33 hours